| 1 (PR) FU | No. 1 Flying Training School RAF |
| 1 (PR) FU | No. 1 (Pilot Refresher) Flying Unit |
| 1 ANS | No. 1 Air Navigation School |
| 1 APS | No. 1 Armament Practice Station |
| 1 CACU/Flt | No. 1 Coast Artillery Co-operation Unit/Flight |
| 1 CP Flt | No. 1 Coastal Patrol Flight |
| 1 EFTS | No. 1 Elementary Flying Training School |
| 1 FTS | No. 1 Flying Training School RAF |
| 1 Gp Comm Flt | No. 1 Group Communication Flight |
| 1 GTS | No. 1 Glider Training School |
| 1 LFS | No. 1 Lancaster Finishing School |
| 1 PRU | No. 1 Photographic Reconnaissance Unit RAF |
| 1 PRU | No. 1 Photographic Reconnaissance Unit |
| 1 PTS | No. 1 parachute Training School |
| 1 RAF FU | No. 1 RAF Film Unit |
| 1 RFS | No. 1 Reserve Flying School |
| 1 RS | No. 1 Radio School RAF |
| 1 RS | No. 1 Radio School |
| 1 Sqn | No. 1 Squadron RAF |
| 1 Sqn RAAF | No. 1 Squadron RAAF |
| 1 Sqn SAAF | 1 Squadron SAAF |
| 1 TEU | No. 1 Tactical Exercise Unit |
| 1 TTU | No. 1 Torpedo Training Unit |
| 1 TU | No. 1 Torpedo Unit |
| 10 (A)FTS | No. 10 (Advanced) Flying Training School |
| 10 AFTS | No. 10 Advanced Flying Training School |
| 10 AGS | No. 10 Air Gunnery School |
| 10 ANS | No. 10 Air Navigation School |
| 10 FIS | No. 10 Flying Instructors School |
| 10 FRS | No. 101 Flying Refresher School |
| 10 Gp TTF | No. 10 Group Target Towing Flight |
| 10 MU | No. 10 Maintenance Unit RAF |
| 10 OTU | No. 10 Operational Training Unit RAF |
| 10 RFS | No. 10 Reserve Flying School |
| 10 RS | No. 10 Radio School |
| 10 Sqn | No. 10 Squadron RAF |
| 10 Sqn & 437 Sqn | No. 10 Squadron RAF?&?No. 437 Squadron RAF |
| 10 Sqn RAAF | No. 10 Squadron RAAF |
| 100 Gp Comm Flt | No. 100 Group Communication Flight |
| 100 Sqn | No. 100 Squadron RAF |
| 101 FRS | No. 101 Flying Refresher School |
| 101 Sqn | No. 101 Squadron RAF |
| 102 FRS | No. 102 Flying Refresher School |
| 102 Sqn | No. 102 Squadron RAF |
| 103 Sqn | No. 103 Squadron RAF |
| 104 Sqn | No. 104 Squadron RAF |
| 105 OTU | No. 105 Operational Training Unit RAF |
| 105 Sqn | No. 105 Squadron RAF |
| 106 Sqn | No. 106 Squadron RAF |
| 107 OTU | No. 107 Operational Training Unit RAF |
| 107 Sqn | No. 107 Squadron RAF |
| 108 Sqn | No. 108 Squadron RAF |
| 109 (T)OTU | No. 109 (Transport) Operational Training Unit RAF |
| 109 Sqn | No. 109 Squadron RAF |
| 11 AGS | No. 11 Air Gunnery School |
| 11 EFTS | No. 11 Elementary Flying Training School |
| 11 Gp Comm Flt | No. 11 Group Communication Flight |
| 11 Gp TTF | No. 11 Group Target Towing Flight |
| 11 OTU | No. 11 Operational Training Unit RAF |
| 11 OTU SAAF | 11 Operational Training Unit SAAF |
| 11 RFS | No. 11 Reserve Flying School |
| 11 RS | No. 11 Radio School |
| 11 Sqn | No. 11 Squadron RAF |
| 11 Sqn SAAF | 11 Squadron SAAF |
| 110 Sqn | No. 110 Squadron RAF |
| 110 Sqn RCAF | No. 110 Squadron RCAF |
| 111 OTU | No. 111 Operational Training Unit RAF |
| 111 Sqn | No. 111 Squadron RAF |
| 111 Sqn RCAF | No. 111 Squadron RCAF |
| 112 Sqn | No. 112 Squadron RAF |
| 113 Sqn | No. 113 Squadron RAF |
| 114 Sqn | No. 114 Squadron RAF |
| 115 Sqn | No. 115 Squadron RAF |
| 116 Sqn | No. 116 Squadron RAF |
| 117 Sqn | No. 117 Squadron RAF |
| 118 Sqn | No. 118 Squadron RAF |
| 118 Sqn | No. 118 Squadron RCAF |
| 118 Sqn RCAF | No. 118 Squadron RCAF |
| 119 Sqn | No. 119 Squadron RAF |
| 12 Gp Comm Flt | No. 12 Group Communication Flight |
| 12 Gp TTF | No. 12 Group Target Towing Flight |
| 12 MU | No. 12 Maintenance Unit RAF |
| 12 OTU | No. 12 Operational Training Unit RAF |
| 12 RFS | No. 12 Reserve Flying School |
| 12 RS | No. 12 Radio School |
| 12 Sqn | No. 612 Squadron RAF |
| 12 Sqn | No. 12 Squadron RAF |
| 12 Sqn SAAF | 12 Squadron SAAF |
| 120 Sqn | No. 120 Squadron RAF |
| 121 (Eagle) Sqn | No. 121 (Eagle) Squadron RAF |
| 121 Sqn | No. 121 Squadron RAF |
| 122 Sqn | No. 122 Squadron RAF |
| 123 Sqn | No. 123 Squadron RAF |
| 123 Sqn RCAF | No. 123 Squadron RCAF |
| 124 Sqn | No. 124 Squadron RAF |
| 125 Sqn | No. 125 Squadron RAF |
| 125 Sqn RCAF | No. 125 Squadron RCAF |
| 126 Sqn | No. 126 Squadron RAF |
| 127 Sqn | No. 127 Squadron RAF |
| 127 Sqn RCAF | No. 127 Squadron RCAF |
| 128 Sqn | No. 128 Squadron RAF |
| 129 Sqn | No. 129 Squadron RAF |
| 13 Gp Comm Flt | No. 13 Group Communication Flight |
| 13 Gp TTF | No. 13 Group Target Towing Flight |
| 13 MU | No. 13 Maintenance Unit RAF |
| 13 OTU | No. 13 Operational Training Unit RAF |
| 13 RFS | No. 13 Reserve Flying School |
| 13 Sqn | No. 13 Squadron RAF |
| 130 Sqn | No. 130 Squadron RAF |
| 131 Sqn | No. 131 Squadron RAF |
| 1310 Flt | No. 1310 Flight RAF |
| 1316 Flt | No. 1316 Flight RAF |
| 132 OTU | No. 132 Operational Training Unit RAF |
| 132 Sqn | No. 132 Squadron RAF |
| 1323 Flt | No. 1323 Flight RAF |
| 133 (Eagle) Sqn | No. 133 (Eagle) Squadron RAF |
| 133 Sqn | No. 133 Squadron RAF |
| 1332 CU | No. 1332 Conversion Unit RAF |
| 1333 (T)CU | No. 1333 (Transport) Conversion Unit RAF |
| 1333 CU | No. 1333 Conversion Unit RAF |
| 1335 CU | No. 1335 Conversion Unit RAF |
| 1336 CU | No. 1336 Conversion Unit RAF |
| 134 Sqn | No. 134 Squadron RAF |
| 1340 Flt | No. 1340 Flight RAF |
| 135 Sqn | No. 135 Squadron RAF |
| 1359 Flt | No. 1359 Flight RAF |
| 136 Sqn | No. 136 Squadron RAF |
| 137 Sqn | No. 137 Squadron RAF |
| 138 Sqn | No. 138 Squadron RAF |
| 1380 CU | No. 1380 Conversion Unit RAF |
| 1381 CU | No. 1381 Conversion Unit RAF |
| 1382 CU | No. 1382 Conversion Unit RAF |
| 1383 CU | No. 1383 Conversion Unit RAF |
| 1384 CU | No. 1384 Conversion Unit RAF |
| 139 Sqn | No. 139 Squadron RAF |
| 14 (A) FTS | No. 14 (Advanced) Flying Training School |
| 14 (A)FTS | No. 14 (Advanced) Flying Training School |
| 14 OTU | No. 14 Operational Training Unit RAF |
| 14 RFS | No. 14 Reserve Flying School |
| 14 Sqn | No. 14 Squadron RAF |
| 14 Sqn RCAF | No. 14 Squadron RCAF |
| 140 Sqn | No. 140 Squadron RAF |
| 1401 Flt | No. 1401 Flight RAF |
| 1409 (Met) Flt | No. 1409 (Meteorological) Flight RAF |
| 141 Sqn | No. 141 Squadron RAF |
| 1416 Flt | No. 1416 Flight RAF |
| 1417 Flt | No. 1417 Flight RAF |
| 142 Sqn | No. 142 Squadron RAF |
| 143 Sqn | No. 143 Squadron RAF |
| 1435 Flt | No. 1435 Flight RAF |
| 1435 Sqn | No. 1435 Squadron RAF |
| 144 Sqn | No. 144 Squadron RAF |
| 1448 Flt | No. 1448 Flight RAF |
| 145 Sqn | No. 145 Squadron RAF |
| 146 Sqn | No. 146 Squadron RAF |
| 147 Sqn | No. 147 Squadron RAF |
| 1472 Flt | No. 1472 Flight RAF |
| 1473 Flt | No. 1473 Flight RAF |
| 1476 Flt | No. 1476 Flight RAF |
| 148 Sqn | No. 148 Squadron RAF |
| 149 Sqn | No. 149 Squadron RAF |
| 15 EFTS | No. 15 Elementary Flying Training School |
| 15 MU | No. 15 Maintenance Unit RAF |
| 15 OTU | No. 15 Operational Training Unit RAF |
| 15 RFS | No. 15 Reserve Flying School |
| 15 Sqn | No. 15 Squadron RAF |
| 15 Sqn RAAF | No. 15 Squadron RAAF |
| 15 Sqn SAAF | 15 Squadron SAAF |
| 15 Sqn SAAF | No. 15 Squadron SAAF |
| 150 Sqn | No. 150 Squadron RAF |
| 1508 Flt | No. 1508 Flight RAF |
| 151 Sqn | No. 151 Squadron RAF |
| 1510 Flt | No. 1510 Flight RAF |
| 1511 B App.TFlt | No. 1511 Beam Approach Training Flight |
| 1513 Flt | No. 1513 Flight RAF |
| 1516 Flt | No. 1516 Flight RAF |
| 152 Sqn | No. 152 Squadron RAF |
| 1521 Flt | No. 1521 Flight RAF |
| 1527 Flt | No. 1527 Flight RAF |
| 1528 Flt | No. 1528 Flight RAF |
| 1529 Flt | No. 1529 Flight RAF |
| 153 Sqn | No. 153 Squadron RAF |
| 1537 B App.TFlt | No. 1537 Beam Approach Training Flight |
| 154 Sqn | No. 154 Squadron RAF |
| 1547 B App.TFlt | No. 1547 Beam Approach Training Flight |
| 155 Sqn | No. 155 Squadron RAF |
| 1552 Flt | No. 1552 Flight RAF |
| 1556 Flt | No. 1556 Flight RAF |
| 1557 (RAT) Flt | No. 1557 (Radio Aids Training) Flight RAF |
| 156 Sqn | No. 156 Squadron RAF |
| 1561 Flt | No. 1561 Flight RAF |
| 1562 Flt | No. 1562 Flight RAF |
| 1563 Flt | No. 1563 Flight RAF |
| 1564 Flt | No. 1564 Flight RAF |
| 157 Sqn | No. 157 Squadron RAF |
| 158 Sqn | No. 158 Squadron RAF |
| 1586 Flt | No. 1586 Flight RAF |
| 1588 (HF)Flt | No. 1588 (Heavy Freight) Flight RAF |
| 159 Sqn | No. 159 Squadron RAF |
| 16 (Pol.) FTS | No. 16 (Polish) Flying Training School |
| 16 EFTS | No. 16 Elementary Flying Training School |
| 16 Gp Comm Flt | No. 16 Group Communication Flight |
| 16 OTU | No. 16 Operational Training Unit RAF |
| 16 RFS | No. 16 Reserve Flying School |
| 16 Sqn | No. 16 Squadron RAF |
| 160 Sqn | No. 160 Squadron RAF |
| 1606 Flt | No. 1606 Flight RAF |
| 161 Sqn | No. 161 Squadron RAF |
| 162 Sqn | No. 162 Squadron RAF |
| 163 Sqn | No. 163 Squadron RAF |
| 164 Sqn | No. 164 Squadron RAF |
| 1641 Flt | No. 1641 Flight RAF |
| 165 Sqn | No. 165 Squadron RAF |
| 1651 CU | No. 1651 Conversion Unit RAF |
| 1652 CU | No. 1652 Conversion Unit RAF |
| 1653 CU | No. 1653 Conversion Unit RAF |
| 1654 CU | No. 1654 Conversion Unit RAF |
| 1656 CU | No. 1656 Conversion Unit RAF |
| 1657 CU | No. 1657 Conversion Unit RAF |
| 1658 CU | No. 1658 Conversion Unit RAF |
| 1659 CU | No. 1659 Conversion Unit RAF |
| 166 Sqn | No. 166 Squadron RAF |
| 1660 CU | No. 1660 Conversion Unit RAF |
| 1661 CU | No. 1661 Conversion Unit RAF |
| 1662 CU | No. 1662 Conversion Unit RAF |
| 1663 CU | No. 1663 Conversion Unit RAF |
| 1664 CU | No. 1664 Conversion Unit RAF |
| 1665 CU | No. 1665 Conversion Unit RAF |
| 1665 HCU | No. 1665 Heavy Conversion Unit RAF |
| 1666 CU | No. 1666 Conversion Unit RAF |
| 1667 CU | No. 1667 Conversion Unit RAF |
| 1667 Flt | No. 1667 Flight RAF |
| 1668 CU | No. 1668 Conversion Unit RAF |
| 1669 CU | No. 1669 Conversion Unit RAF |
| 167 Sqn | No. 167 Squadron RAF |
| 1678 CU | No. 1678 Conversion Unit RAF |
| 1678 Flt | No. 1678 Flight RAF |
| 168 Sqn | No. 168 Squadron RAF |
| 1682 Flt | No. 1682 Flight RAF |
| 1683 Flt | No. 1683 Flight RAF |
| 1684 Flt | No. 1684 Flight RAF |
| 1685 Flt | No. 1685 Flight RAF |
| 1686 Flt | No. 1686 Flight RAF |
| 1687 Flt | No. 1687 Flight RAF |
| 1688 Flt | No. 1688 Flight RAF |
| 169 Sqn | No. 169 Squadron RAF |
| 1690 Flt | No. 1690 Flight RAF |
| 1692 Flt | No. 1692 Flight RAF |
| 1695 Flt | No. 1695 Flight RAF |
| 1697 Flt | No. 1697 Flight RAF |
| 1699 CU | No. 1699 Conversion Unit RAF |
| 1699 Flt | No. 1699 Flight RAF |
| 17 EFTS | No. 17 Elementary Flying Training School |
| 17 FTS | No. 17 Flying Training School RAF |
| 17 OTU | No. 17 Operational Training Unit RAF |
| 17 RFS | No. 17 Reserve Flying School |
| 17 SFTS | No. 17 Service Flying Training School |
| 17 Sqn | No. 17 Squadron RAF |
| 170 Sqn | No. 170 Squadron RAF |
| 171 Sqn | No. 171 Squadron RAF |
| 172 Sqn | No. 172 Squadron RAF |
| 173 Sqn | No. 173 Squadron RAF |
| 174 Sqn | No. 174 Squadron RAF |
| 175 Sqn | No. 175 Squadron RAF |
| 176 Sqn | No. 176 Squadron RAF |
| 177 Sqn | No. 177 Squadron RAF |
| 178 Sqn | No. 178 Squadron RAF |
| 179 Sqn | No. 179 Squadron RAF |
| 18 APC | No. 18 Armament Practice Camp |
| 18 Gp Comm Flt | No. 18 Group Communication Flight |
| 18 MU | No. 18 Maintenance Unit RAF |
| 18 OTU | No. 18 Operational Training Unit RAF |
| 18 RFS | No. 18 Reserve Flying School |
| 18 Sqn | No. 18 Squadron RAF |
| 180 Sqn | No. 180 Squadron RAF |
| 181 Sqn | No. 181 Squadron RAF |
| 182 Sqn | No. 182 Squadron RAF |
| 183 Sqn | No. 183 Squadron RAF |
| 184 Sqn | No. 184 Squadron RAF |
| 185 Sqn | No. 185 Squadron RAF |
| 186 Sqn | No. 186 Squadron RAF |
| 187 Sqn | No. 187 Squadron RAF |
| 188 Sqn | No. 188 Squadron RAF |
| 189 Sqn | No. 189 Squadron RAF |
| 19 FTS | No. 19 Flying Training School RAF |
| 19 Gp Comm Flt | No. 19 Group Communication Flight |
| 19 MU | No. 19 Maintenance Unit RAF |
| 19 OTU | No. 19 Operational Training Unit RAF |
| 19 Sqn | No. 19 Squadron RAF |
| 190 Sqn | No. 190 Squadron RAF |
| 1900 Flt | No. 1900 Flight RAF |
| 1901 Flt | No. 1901 Flight RAF |
| 1902 Flt | No. 1902 Flight RAF |
| 1903 Flt | No. 1903 Flight RAF |
| 1904 Flt | No. 1904 Flight RAF |
| 1905 Flt | No. 1905 Flight RAF |
| 1908 Flt | No. 1908 Flight RAF |
| 1909 Flt | No. 1909 Flight RAF |
| 191 Sqn | No. 191 Squadron RAF |
| 192 Sqn | No. 192 Squadron RAF |
| 193 Sqn | No. 193 Squadron RAF |
| 194 Sqn | No. 194 Squadron RAF |
| 195 Sqn | No. 195 Squadron RAF |
| 1951 Flt | No. 1951 Flight RAF |
| 1952 Flt | No. 1952 Flight RAF |
| 1953 Flt | No. 1953 Flight RAF |
| 1954 Flt | No. 1954 Flight RAF |
| 1955 Flt | No. 1955 Flight RAF |
| 1956 Flt | No. 1956 Flight RAF |
| 1957 Flt | No. 1957 Flight RAF |
| 1958 Flt | No. 1958 Flight RAF |
| 1959 Flt | No. 1959 Flight RAF |
| 196 Sqn | No. 196 Squadron RAF |
| 196 Sqn & 299 Sqn | No. 196 Squadron RAF?&?No. 299 Squadron RAF |
| 1960 Flt | No. 1960 Flight RAF |
| 1961 Flt | No. 1961 Flight RAF |
| 1962 Flt | No. 1962 Flight RAF |
| 1963 Flt | No. 1963 Flight RAF |
| 1964 Flt | No. 1964 Flight RAF |
| 1965 Flt | No. 1965 Flight RAF |
| 1966 Flt | No. 1966 Flight RAF |
| 1967 Flt | No. 1967 Flight RAF |
| 1968 Flt | No. 1968 Flight RAF |
| 1969 Flt | No. 1969 Flight RAF |
| 197 Sqn | No. 197 Squadron RAF |
| 1970 Flt | No. 1970 Flight RAF |
| 198 Sqn | No. 198 Squadron RAF |
| 199 Sqn | No. 199 Squadron RAF |
| 2 (Belgian) Sqn | No. 2 (Belgian) Squadron RAF |
| 2 AACU | No. 2 Anti-aircraft Co-operation Unit |
| 2 ANS | No. 2 Air Navigation School |
| 2 APS | No. 2 Armament Practice Station |
| 2 BANS | No. 2 Basic Air Navigation School |
| 2 EFTS | No. 2 Elementary Flying Training School |
| 2 FP | No. 2 Ferry Pool |
| 2 FTS | No. 2 Flying Training School RAF |
| 2 Gp Comm Flt | No. 2 Group Communication Flight |
| 2 OTU | No. 2 Operational Training Unit RAF |
| 2 RFS | No. 2 Reserve Flying School |
| 2 RS | No. 2 Radio School |
| 2 Sqn | No. 2 Squadron RAF |
| 2 Sqn RAAF | No. 2 Squadron RAAF |
| 2 Sqn SAAF | 2 Squadron SAAF |
| 2 TAF, 3 Gp Comm Flt | No. 2 Tactical Air Force Communication Squadron,?No. 3 Group Communication Flight |
| 2 TEU | No. 2 Tactical Exercise Unit |
| 20 FTS | No. 20 Flying Training School RAF |
| 20 MU | No. 20 Maintenance Unit RAF |
| 20 OTU | No. 20 Operational Training Unit RAF |
| 20 SFTS | No. 20 Service Flying Training School |
| 20 SFTS | No. 22 Service Flying Training School |
| 20 Sqn | No. 20 Squadron RAF |
| 200 Sqn | No. 200 Squadron RAF |
| 201 AFS | No. 201 Advanced Flying School |
| 201 Sqn | No. 201 Squadron RAF |
| 202 AFS | No. 202 Advanced Flying School |
| 202 Sqn | No. 202 Squadron RAF |
| 203 AFS | No. 203 Advanced Flying School |
| 203 Sqn | No. 203 Squadron RAF |
| 204 AFS | No. 204 Advanced Flying School |
| 204 Sqn | No. 204 Squadron RAF |
| 205 AFS | No. 205 Advanced Flying School |
| 205 Sqn | No. 205 Squadron RAF |
| 206 AFS | No. 206 Advanced Flying School |
| 206 Sqn | No. 206 Squadron RAF |
| 207 AFS | No. 207 Advanced Flying School |
| 207 FTS | No. 207 Flying Training School |
| 207 Sqn | No. 207 Squadron RAF |
| 208 Sqn | No. 208 Squadron RAF |
| 209 Sqn | No. 209 Squadron RAF |
| 21 (P) AFU | No. 21 (Pilot) Advanced Flying Unit |
| 21 (PR) FS | No. 21 (Pilot Refresher) Flying School |
| 21 EFTS | No. 21 Elementary Flying Training School |
| 21 FTS | No. 21 Flying Training School RAF |
| 21 Gp Comm Flt | No. 21 Group Communication Flight |
| 21 HGCU | No. 21 Heavy Glider Conversion Unit RAF |
| 21 OTU | No. 21 Operational Training Unit RAF |
| 21 Sqn | No. 21 Squadron RAF |
| 21 Sqn RAAF | No. 21 Squadron RAAF |
| 210 Sqn | No. 210 Squadron RAF |
| 211 Sqn | No. 211 Squadron RAF |
| 212 Sqn | No. 212 Squadron RAF |
| 213 Sqn | No. 213 Squadron RAF |
| 214 Sqn | No. 214 Squadron RAF |
| 215 AFS | No. 215 Advanced Flying School |
| 215 Sqn | No. 215 Squadron RAF |
| 216 Sqn | No. 216 Squadron RAF |
| 217 Sqn | No. 217 Squadron RAF |
| 218 Sqn | No. 218 Squadron RAF |
| 219 Sqn | No. 219 Squadron RAF |
| 22 EFTS | No. 22 Elementary Flying Training School |
| 22 FTS | No. 22 Flying Training School RAF |
| 22 FTS | No. 22 Flying Training School |
| 22 Gp Comm Flt | No. 22 Group Communication Flight |
| 22 MU | No. 22 Maintenance Unit RAF |
| 22 OTU | No. 22 Operational Training Unit RAF |
| 22 RFS | No. 22 Reserve Flying School |
| 22 SFTS | No. 22 Service Flying Training School |
| 22 Sqn | No. 22 Squadron RAF |
| 220 Sqn | No. 220 Squadron RAF |
| 221 Sqn | No. 221 Squadron RAF |
| 222 Sqn | No. 222 Squadron RAF |
| 223 Sqn | No. 223 Squadron RAF |
| 224 Sqn | No. 224 Squadron RAF |
| 225 Sqn | No. 225 Squadron RAF |
| 226 OCU | No. 226 Operational Conversion Unit RAF |
| 226 Sqn | No. 226 Squadron RAF |
| 227 OCU | No. 227 Operational Conversion Unit RAF |
| 227 OTU | No. 227 Operational Training Unit RAF |
| 227 Sqn | No. 227 Squadron RAF |
| 228 OCU | No. 228 Operational Conversion Unit RAF |
| 228 Sqn | No. 228 Squadron RAF |
| 229 OCU | No. 229 Operational Conversion Unit RAF |
| 229 Sqn | No. 229 Squadron RAF |
| 23 Gp Comm Flt | No. 23 Group Communication Flight |
| 23 MU | No. 23 Maintenance Unit RAF |
| 23 OTU | No. 23 Operational Training Unit RAF |
| 23 RFS | No. 23 Reserve Flying School |
| 23 Sqn | No. 23 Squadron RAF |
| 230 OCU | No. 230 Operational Conversion Unit RAF |
| 230 Sqn | No. 230 Squadron RAF |
| 231 OCU | No. 231 Operational Conversion Unit RAF |
| 231 Sqn | No. 231 Squadron RAF |
| 232 Sqn | No. 232 Squadron RAF |
| 233 Sqn | No. 233 Squadron RAF |
| 234 Sqn | No. 234 Squadron RAF |
| 235 OCU | No. 235 Operational Conversion Unit RAF |
| 235 Sqn | No. 235 Squadron RAF |
| 236 OCU | No. 236 Operational Conversion Unit RAF |
| 236 Sqn | No. 236 Squadron RAF |
| 237 OCU | No. 237 Operational Conversion Unit RAF |
| 237 Sqn | No. 237 Squadron RAF |
| 238 Sqn | No. 238 Squadron RAF |
| 238 Sqn & 436 Sqn | No. 238 Squadron RAF?&?No. 436 Squadron RAF |
| 239 Sqn | No. 239 Squadron RAF |
| 24 EFTS | No. 24 Elementary Flying Training School |
| 24 Gp Comm Flt | No. 24 Group Communication Flight |
| 24 MU | No. 24 Maintenance Unit RAF |
| 24 OTU | No. 24 Operational Training Unit RAF |
| 24 RFS | No. 24 Reserve Flying School |
| 24 Sqn | No. 24 Squadron RAF |
| 24 Sqn & 1 P>S | No. 24 Squadron RAF?&?No.1 Parachute and Glider Training School |
| 24 Sqn & 59 Sqn | No. 24 Squadron RAF?&?No. 59 Squadron RAF |
| 24 Sqn SAAF | 24 Squadron SAAF |
| 24 Sqn, 27 Sqn & 62 Sqn | No. 24 Squadron RAF,?No. 27 Squadron RAF?&?No. 62 Squadron RAF |
| 240 OCU | No. 240 Operational Conversion Unit RAF |
| 240 Sqn | No. 240 Squadron RAF |
| 241 OCU | No. 241 Operational Conversion Unit RAF |
| 241 Sqn | No. 241 Squadron RAF |
| 242 OCU | No. 242 Operational Conversion Unit RAF |
| 242 Sqn | No. 242 Squadron RAF |
| 243 Sqn | No. 243 Squadron RAF |
| 244 Sqn | No. 244 Squadron RAF |
| 245 Sqn | No. 245 Squadron RAF |
| 246 Sqn | No. 246 Squadron RAF |
| 247 Sqn | No. 247 Squadron RAF |
| 248 Sqn | No. 248 Squadron RAF |
| 249 Sqn | No. 249 Squadron RAF |
| 25 Gp Comm Flt | No. 25 Group Communication Flight |
| 25 OTU | No. 25 Operational Training Unit RAF |
| 25 RFS | No. 25 Reserve Flying School |
| 25 Sqn | No. 25 Squadron RAF |
| 250 Sqn | No. 250 Squadron RAF |
| 251 Sqn | No. 251 Squadron RAF |
| 252 Sqn | No. 252 Squadron RAF |
| 253 Sqn | No. 253 Squadron RAF |
| 254 Sqn | No. 254 Squadron RAF |
| 255 Sqn | No. 255 Squadron RAF |
| 256 Sqn | No. 256 Squadron RAF |
| 257 Sqn | No. 257 Squadron RAF |
| 258 Sqn | No. 258 Squadron RAF |
| 259 Sqn | No. 259 Squadron RAF |
| 26 AACU | No. 26 Anti-Aircraft Co-operation Unit |
| 26 OTU | No. 26 Operational Training Unit RAF |
| 26 Sqn | No. 26 Squadron RAF |
| 260 Sqn | No. 260 Squadron RAF |
| 260 Sqn | No.260 Squadron RAF |
| 261 Sqn | No. 261 Squadron RAF |
| 262 Sqn | No. 262 Squadron RAF |
| 263 Sqn | No. 263 Squadron RAF |
| 264 Sqn | No. 264 Squadron RAF |
| 265 Sqn | No. 265 Squadron RAF |
| 266 Sqn | No. 266 Squadron RAF |
| 267 Sqn | No. 267 Squadron RAF |
| 268 Sqn | No. 268 Squadron RAF |
| 269 Sqn | No. 269 Squadron RAF |
| 27 Gp Comm Flt | No. 27 Group Communication Flight |
| 27 MU | No. 27 Maintenance Unit RAF |
| 27 OTU | No. 27 Operational Training Unit RAF |
| 27 Sqn | No. 27 Squadron RAF |
| 271 Sqn | No. 271 Squadron RAF |
| 272 MU | No. 272 Maintenance Unit RAF |
| 272 Sqn | No. 272 Squadron RAF |
| 273 MU | No. 273 Maintenance Unit RAF |
| 273 Sqn | No. 273 Squadron RAF |
| 274 MU | No. 274 Maintenance Unit RAF |
| 274 Sqn | No. 274 Squadron RAF |
| 275 Sqn | No. 275 Squadron RAF |
| 276 Sqn | No. 276 Squadron RAF |
| 277 Sqn | No. 277 Squadron RAF |
| 278 Sqn | No. 278 Squadron RAF |
| 279 Sqn | No. 279 Squadron RAF |
| 28 EFTS | No. 28 Elementary Flying Training School |
| 28 OTU | No. 28 Operational Training Unit RAF |
| 28 Sqn | No. 28 Squadron RAF |
| 280 Sqn | No. 280 Squadron RAF |
| 281 Sqn | No. 281 Squadron RAF |
| 282 Sqn | No. 282 Squadron RAF |
| 283 Sqn | No. 283 Squadron RAF |
| 284 Sqn | No. 284 Squadron RAF |
| 285 Sqn | No. 285 Squadron RAF |
| 286 Sqn | No. 286 Squadron RAF |
| 287 Sqn | No. 287 Squadron RAF |
| 288 Sqn | No. 288 Squadron RAF |
| 289 Sqn | No. 289 Squadron RAF |
| 29 EFTS | No. 29 Elementary Flying Training School |
| 29 MU | No. 29 Maintenance Unit RAF |
| 29 OTU | No. 29 Operational Training Unit RAF |
| 29 Sqn | No. 29 Squadron RAF |
| 290 Sqn | No. 290 Squadron RAF |
| 291 Sqn | No. 291 Squadron RAF |
| 292 Sqn | No. 292 Squadron RAF |
| 293 Sqn | No. 293 Squadron RAF |
| 294 Sqn | No. 294 Squadron RAF |
| 295 Sqn | No. 295 Squadron RAF |
| 295 Sqn & 113 Sqn | No. 295 Squadron RAF?&?No. 113 Squadron RAF |
| 296 Sqn | No. 296 Squadron RAF |
| 297 Sqn | No. 297 Squadron RAF |
| 298 Sqn | No. 298 Squadron RAF |
| 299 Sqn | No. 299 Squadron RAF |
| 2TAF Comm. Sqn. | 2nd Tactical Air Force Communication Squadron |
| 3 (RAAF) Sqn / 3 Sqn RAAF | No. 3 Squadron RAAF |
| 3 ANS | No. 3 Air Navigation School |
| 3 APS | No. 3 Armament Practice Station |
| 3 EFTS | No. 3 Elementary Flying Training School |
| 3 FP | No. 3 Ferry Pool |
| 3 FTS | No. 3 Flying Training School RAF |
| 3 FTS | No. 3 Flying Training Scholl |
| 3 Gp Comm Flt | No. 3 Group Communication Flight |
| 3 GTS | No. 3 Glider Training School |
| 3 LFS | No. 3 Lancaster Finishing School |
| 3 RFS | No. 3 Reserve Flying School |
| 3 S of GR | No. 3 School of General Reconnaissance |
| 3 SFTS | No. 3 Service Flying Training School |
| 3 SofGR | No. 3 School of General Reconnaissance |
| 3 Sqn | No. 3 Squadron RAF |
| 3 Sqn RAAF | No. 3 Squadron RAAF |
| 3 Sqn SAAF | 3 Squadron SAAF |
| 3 TEU | No. 3 Tactical Exercise Unit |
| 30 MU | No. 30 Maintenance Unit RAF |
| 30 OTU | No. 30 Operational Training Unit RAF |
| 30 Sqn | No. 30 Squadron RAF |
| 30 Sqn & Airwork | No. 30 Squadron RAF?&?Airwork Ltd. |
| 30 Sqn RAAF | No. 30 Squadron RAAF |
| 300 (Polish) Sqn | No. 300 (Polish) Squadron RAF |
| 300 Sqn | No. 300 Squadron RAF |
| 301 (Polish) Sqn | No. 301 (Polish) Squadron RAF |
| 301 Sqn | No. 301 Squadron RAF |
| 302 Sqn | No. 302 Squadron RAF |
| 303 (Polish) Sqn | No. 303 (Polish) Squadron RAF |
| 303 Sqn | No. 303 Squadron RAF |
| 304 (Polish) Sqn | No. 304 (Polish) Squadron RAF |
| 304 Sqn | No. 304 Squadron RAF |
| 305 Sqn | No. 305 Squadron RAF |
| 306 Sqn | No. 306 Squadron RAF |
| 307 (Polish) Sqn | No. 307 (Polish) Squadron RAF |
| 307 Sqn | No. 307 Squadron RAF |
| 308 Sqn | No. 308 Squadron RAF |
| 309 (Polish) Sqn | No. 309 (Polish) Squadron RAF |
| 309 Sqn | No. 309 Squadron RAF |
| 31 GRS | No. 31 General Reconnaissance School |
| 31 OTU | No. 31 Operational Training Unit RAF |
| 31 Sqn | No. 31 Squadron RAF |
| 310 (Czech) Sqn | No. 310 (Czech) Squadron RAF |
| 310 Sqn | No. 310 Squadron RAF |
| 311 Sqn | No. 311 Squadron RAF |
| 312 (Czech) Sqn | No. 312 (Czech) Squadron RAF |
| 312 Sqn | No. 312 Squadron RAF |
| 313 Sqn | No. 313 Squadron RAF |
| 314 Sqn (not formed as a flying unit) | No. 314 Squadron RAF |
| 315 Sqn | No. 315 Squadron RAF |
| 316 Sqn | No. 316 Squadron RAF |
| 317 Sqn | No. 317 Squadron RAF |
| 318 (Polish) Sqn | No. 318 (Polish) Squadron RAF |
| 318 Sqn | No. 318 Squadron RAF |
| 319 Sqn (not formed) | No. 319 Squadron RAF |
| 32 MU | No. 32 Maintenance Unit RAF |
| 32 OTU | No. 32 Operational Training Unit RAF |
| 32 Sqn | No. 32 Squadron RAF |
| 32 Sqn RAAF | No. 32 Squadron RAAF |
| 320 (Dutch) Sqn | No. 320 Squadron RAF |
| 320 Sqn | No. 320 Squadron RAF |
| 321 (Dutch) Sqn | No. 321 Squadron RAF |
| 322 (Dutch) Sqn | No. 322 Squadron RAF |
| 323 Sqn (not formed) | No. 323 Squadron RAF |
| 324 Sqn (not formed) | No. 324 Squadron RAF |
| 325 Sqn (not formed) | No. 325 Squadron RAF |
| 326 Sqn | No. 326 Squadron RAF |
| 327 Sqn | No. 327 Squadron RAF |
| 328 Sqn | No. 328 Squadron RAF |
| 329 (French) Sqn | No. 329 (French) Squadron RAF |
| 329 Sqn | No. 329 Squadron RAF |
| 33 MU | No. 33 Maintenance Unit RAF |
| 33 Sqn | No. 33 Squadron RAF |
| 330 Sqn | No. 330 Squadron RAF |
| 331 Sqn | No. 331 (Norwegian) Squadron RAF |
| 331 Sqn | No. 331 Squadron RAF |
| 332 (Norwegian) Sqn | No. 332 (Norwegian) Squadron RAF |
| 332 Sqn | No. 332 Squadron RAF |
| 333 Sqn | No. 333 Squadron RAF |
| 334 Sqn | No. 334 Squadron RAF |
| 335 Sqn | No. 335 Squadron RAF |
| 336 Sqn | No. 336 Squadron RAF |
| 337 Sqn (not formed) | No. 337 Squadron RAF |
| 338 Sqn (not formed) | No. 338 Squadron RAF |
| 339 Sqn (not formed) | No. 339 Squadron RAF |
| 34 OTU | No. 34 Operational Training Unit RAF |
| 34 Sqn | No. 34 Squadron RAF |
| 340 (French) Sqn | No. 340 (French) Squadron RAF |
| 340 Sqn | No. 340 Squadron RAF |
| 341 (French) Sqn | No. 341 (French) Squadron RAF |
| 341 Sqn | No. 341 Squadron RAF |
| 342 Sqn | No. 342 Squadron RAF |
| 343 Sqn | No. 343 Squadron RAF |
| 344 Sqn | No. 344 Squadron RAF |
| 345 Sqn | No. 345 Squadron RAF |
| 346 (French) Sqn | No. 346 (French) Squadron RAF |
| 346 Sqn | No. 346 Squadron RAF |
| 347 Sqn | No. 347 Squadron RAF |
| 348 Sqn (not formed) | No. 348 Squadron RAF |
| 349 (Belgian) Sqn | No. 349 (Belgian) Squadron RAF |
| 349 Sqn | No. 349 Squadron RAF |
| 35 Sqn | No. 35 Squadron RAF |
| 350 (Belgian) Sqn | No. 350 (Belgian) Squadron RAF |
| 350 Sqn | No. 350 Squadron RAF |
| 358 Sqn | No. 358 Squadron RAF |
| 36 OTU | No. 36 Operational Training Unit RAF |
| 36 Sqn | No. 36 Squadron RAF |
| 360 Sqn | No. 360 Squadron RAF |
| 37 Sqn | No. 37 Squadron RAF |
| 38 Gp Comm Flt | No. 38 Group Communication Flight |
| 38 MU | No. 38 Maintenance Unit RAF |
| 38 Sqn | No. 39 Squadron RAF |
| 38 Sqn | No. 38 Squadron RAF |
| 39 MU | No. 39 Maintenance Unit RAF |
| 39 Sqn | No. 39 Squadron RAF |
| 4 (A)FTS | No. 14 (Advanced) Flying Training Scholl |
| 4 EFTS | No. 4 Elementary Flying Training School |
| 4 FP | No. 4 Ferry Pool |
| 4 FTS | No. 4 Flying Training School RAF |
| 4 Gp Comm Flt | No. 4 Group Communication Flight |
| 4 OTU | No. 4 Operational Training Unit RAF |
| 4 RFS | No. 4 Reserve Flying School |
| 4 RS | No. 4 Radio School |
| 4 Sqn | No. 4 Squadron RAF |
| 4 Sqn SAAF | 4 Squadron SAAF |
| 40 Sqn | No. 40 Squadron RAF |
| 40 Sqn SAAF | 40 Squadron SAAF |
| 400 Sqn RCAF | No. 400 Squadron RCAF |
| 401 Sqn RCAF | No. 401 Squadron RCAF |
| 402 Sqn RCAF | No. 402 Squadron RCAF |
| 403 Sqn RCAF | No. 403 Squadron RCAF |
| 404 Sqn RCAF | No. 404 Squadron RCAF |
| 405 Sqn RCAF | No. 405 Squadron RCAF |
| 406 Sqn RCAF | No. 406 Squadron RCAF |
| 407 Sqn RCAF | No. 407 Squadron RCAF |
| 408 Sqn RCAF | No. 408 Squadron RCAF |
| 409 Sqn RCAF | No. 409 Squadron RCAF |
| 41 Gp Comm Flt | No. 41 Group Communication Flight |
| 41 OTU | No. 41 Operational Training Unit RAF |
| 41 Sqn | No. 41 Squadron RAF |
| 410 Sqn RCAF | No. 410 Squadron RCAF |
| 411 Sqn RCAF | No. 411 Squadron RCAF |
| 412 Sqn RCAF | No. 412 Squadron RCAF |
| 414 Sqn RCAF | No. 414 Squadron RCAF |
| 415 Sqn RCAF | No. 415 Squadron RCAF |
| 416 Sqn RCAF | No. 416 Squadron RCAF |
| 417 Sqn RCAF | No. 417 Squadron RCAF |
| 418 Sqn RCAF | No. 418 Squadron RCAF |
| 419 Sqn RCAF | No. 419 Squadron RCAF |
| 42 (Belgian) Sqn | No. 42 (Belgian) Squadron RAF |
| 42 Gp Comm Flt | No. 42 Group Communication Flight |
| 42 Sqn | No. 42 Squadron RAF |
| 420 Sqn RCAF | No. 420 Squadron RCAF |
| 421 Flt | No. 421 (Reconnaissance) Flight RAF |
| 421 Flt | No. 421 Flight RAF |
| 421 Sqn RCAF | No. 421 Squadron RCAF |
| 422 Sqn RCAF | No. 422 Squadron RCAF |
| 423 Sqn RCAF | No. 423 Squadron RCAF |
| 424 Sqn RCAF | No. 413 Squadron RCAF |
| 424 Sqn RCAF | No. 424 Squadron RCAF |
| 425 Sqn RCAF | No. 425 Squadron RCAF |
| 426 Sqn | No. 426 Squadron RAF |
| 426 Sqn RCAF | No. 426 Squadron RCAF |
| 427 Sqn RCAF | No. 427 Squadron RCAF |
| 428 Sqn RCAF | No. 428 Squadron RCAF |
| 429 Sqn RCAF | No. 429 Squadron RCAF |
| 43 Gp Comm Flt | No. 43 Group Communication Flight |
| 43 OTU | No. 43 Operational Training Unit RAF |
| 43 Sqn | No. 43 Squadron RAF |
| 430 Sqn RCAF | No. 430 Squadron RCAF |
| 431 Sqn RCAF | No. 431 Squadron RCAF |
| 432 Sqn RCAF | No. 432 Squadron RCAF |
| 433 Sqn RCAF | No. 433 Squadron RCAF |
| 434 Sqn RCAF | No. 434 Squadron RCAF |
| 436 Sqn | No. 436 Squadron RAF |
| 436 Sqn RCAF | No. 436 Squadron RCAF |
| 437 Sqn | No. 437 Squadron RAF |
| 437 Sqn RCAF | No. 437 Squadron RCAF |
| 438 Sqn RCAF | No. 438 Squadron RCAF |
| 439 Sqn RCAF | No. 439 Squadron RCAF |
| 44 Gp Comm Flt | No. 44 Group Communication Flight |
| 44 MU | No. 44 Maintenance Unit RAF |
| 44 Sqn | No. 44 Squadron RAF |
| 440 Sqn RCAF | No. 440 Squadron RCAF |
| 441 Sqn RCAF | No. 441 Squadron RCAF |
| 442 Sqn RCAF | No. 442 Squadron RCAF |
| 443 Sqn RCAF | No. 443 Squadron RCAF |
| 45 MU | No. 45 Maintenance Unit RAF |
| 45 Sqn | No. 45 Squadron RAF |
| 45 Sqn | No.45 Squadron RAF |
| 450 Sqn RAAF | No. 450 Squadron RAAF |
| 451 Sqn RAAF | No. 451 Squadron RAAF |
| 452 Sqn RAAF | No. 452 Squadron RAAF |
| 452 Sqn Sqn RAAF | No. 452 Squadron RAAF |
| 453 Sqn RAAF | No. 453 Squadron RAAF |
| 455 Sqn RAAF | No. 455 Squadron RAAF |
| 456 Sqn RAAF | No. 456 Squadron RAAF |
| 457 Sqn | No. 457 Squadron RAF |
| 457 Sqn RAAF | No. 457 Squadron RAAF |
| 458 Sqn RAAF | No. 458 Squadron RAAF |
| 459 Sqn RAAF | No. 459 Squadron RAAF |
| 46 MU | No. 46 Maintenance Unit RAF |
| 46 Sqn | No. 46 Squadron RAF |
| 46 Sqn & 114 Sqn | No. 46 Squadron RAF?&?No. 114 Squadron RAF |
| 460 Sqn RAAF | No. 460 Squadron RAAF |
| 461 Sqn RAAF | No. 461 Squadron RAAF |
| 462 Sqn | No. 462 Squadron RAF |
| 463 Sqn RAAF | No. 463 Squadron RAAF |
| 464 RAAF | No. 464 Squadron RAAF |
| 466 Sqn | No. 466 Squadron RAF |
| 466 Sqn RAAF | No. 466 Squadron RAAF |
| 467 Sqn RAAF | No. 467 Squadron RAAF |
| 47 Sqn | No. 47 Squadron RAF |
| 48 Gp Comm Flt | No. 48 Group Communication Flight |
| 48 MU | No. 48 Maintenance Unit RAF |
| 48 OTU | No. 84 Operational Training Unit RAF |
| 48 Sqn | No. 48 Squadron RAF |
| 485 Sqn RNZAF / 485 (NZ) Sqn | No. 485 Squadron RNZAF |
| 486 Sqn RNZAF / 464 (RNZAF) Sqn | No. 486 Squadron RNZAF |
| 487 (RNZAF) Sqn / 487 Sqn RNZAF | No. 487 Squadron RNZAF |
| 488 (RNZAF) Sqn / 488 Sqn RNZAF | No. 488 Squadron RNZAF |
| 488 Sqn | No. 488 Squadron RAF |
| 489 (RNZAF) Sqn / 489 Sqn RNZAF | No. 489 Squadron RNZAF |
| 489 Sqn | No. 489 Squadron RAF |
| 49 Sqn | No. 49 Squadron RAF |
| 5 (P) AFU | No. 5 (Pilot) Advanced Flying Unit |
| 5 (P)AFU | No. 5 (Pilots) Advanced Flying Unit |
| 5 (P)AFU | No. 5 (Pilot) Advanced Flying Unit |
| 5 ANS | No. 5 Air Navigation School |
| 5 ANS | No. 7 Air Navigation School |
| 5 CPF | No. 5 Coastal Patrol Flight RAF |
| 5 FP | No. 5 Ferry Pool RAF |
| 5 FTS | No. 5 Flying Training School RAF |
| 5 FTS | No. 5 Flying Training School |
| 5 Gp Comm Flt | No. 5 Group Communication Flight |
| 5 LFS | No. 5 Lancaster Finishing School |
| 5 METS | No. 5 Middle East Training School |
| 5 MU | No. 5 Maintenance Unit RAF |
| 5 RFS | No. 5 Reserve Flying School |
| 5 Sqn | No. 5 Squadron RAF |
| 5 Sqn SAAF | 5 Squadron SAAF |
| 50 Sqn | No. 50 Squadron RAF |
| 500 Sqn | No. 500 Squadron RAF |
| 501 Sqn | No. 501 Squadron RAF |
| 502 Sqn | No. 502 Squadron RAF |
| 503 Sqn | No. 503 Squadron RAF |
| 504 Sqn | No. 504 Squadron RAF |
| 505 Sqn (not formed) | No. 505 Squadron RAF |
| 506 Sqn (not formed) | No. 506 Squadron RAF |
| 507 Sqn (not formed) | No. 507 Squadron RAF |
| 508 Sqn (not formed) | No. 508 Squadron RAF |
| 509 Sqn (not formed) | No. 509 Squadron RAF |
| 51 MU | No. 51 Maintenance Unit RAF |
| 51 OTU | No. 51 Operational Training Unit RAF |
| 51 Sqn | No. 51 Squadron RAF |
| 510 Sqn | No. 510 Squadron RAF |
| 511 Sqn | No. 511 Squadron RAF |
| 512 Sqn | No. 512 Squadron RAF |
| 512 Sqn & 241 Sqn | No. 512 Squadron RAF?&?No. 241 Squadron RAF |
| 513 Sqn | No. 513 Squadron RAF |
| 514 Sqn | No. 514 Squadron RAF |
| 515 Sqn | No. 515 Squadron RAF |
| 516 Sqn | No. 516 Squadron RAF |
| 517 Sqn | No. 517 Squadron RAF |
| 518 Sqn | No. 518 Squadron RAF |
| 519 Sqn | No. 519 Squadron RAF |
| 52 OTU | No. 52 Operational Training Unit RAF |
| 52 Sqn | No. 52 Squadron RAF |
| 520 Sqn | No. 520 Squadron RAF |
| 521 Sqn | No. 521 Squadron RAF |
| 524 Sqn | No. 524 Squadron RAF |
| 525 Sqn | No. 525 Squadron RAF |
| 526 Sqn | No. 526 Squadron RAF |
| 527 Sqn | No. 527 Squadron RAF |
| 529 Sqn | No. 529 Squadron RAF |
| 53 OTU | No. 53 Operational Training Unit RAF |
| 53 Sqn | No. 53 Squadron RAF |
| 53 Sqn & 99 Sqn | No. 53 Squadron RAF?&?No. 99 Squadron RAF |
| 54 Gp Comm Flt | No. 54 Group Communication Flight |
| 54 OTU | No. 54 Operational Training Unit RAF |
| 54 OTU RAAF | No. 54 Operational Training Unit RAAF |
| 54 Sqn | No. 54 Squadron RAF |
| 540 Sqn | No. 540 Squadron RAF |
| 541 Sqn | No. 541 Squadron RAF |
| 547 Sqn | No. 547 Squadron RAF |
| 548 Sqn | No. 548 Squadron RAF |
| 549 Sqn | No. 549 Squadron RAF |
| 55 OTU | No. 55 Operational Training Unit RAF |
| 55 Sqn | No. 55 Squadron RAF |
| 550 Sqn | No. 550 Squadron RAF |
| 56 OTU | No. 56 Operational Training Unit RAF |
| 56 Sqn | No. 56 Squadron RAF |
| 567 Sqn | No. 567 Squadron RAF |
| 57 Gp Comm Flt | No. 84 Group Communication Flight |
| 57 OTU | No. 57 Operational Training Unit RAF |
| 57 Sqn | No. 57 Squadron RAF |
| 570 Sqn | No. 570 Squadron RAF |
| 571 Sqn | No. 571 Squadron RAF |
| 575 Sqn | No. 575 Squadron RAF |
| 576 Sqn | No. 576 Squadron RAF |
| 577 Sqn | No. 577 Squadron RAF |
| 578 Sqn | No. 578 Squadron RAF |
| 58 OTU | No. 58 Operational Training Unit RAF |
| 58 Sqn | No. 58 Squadron RAF |
| 582 Sqn | No. 582 Squadron RAF |
| 587 Sqn | No. 587 Squadron RAF |
| 59 OTU | No. 59 Operational Training Unit RAF |
| 59 Sqn | No. 59 Squadron RAF |
| 595 Sqn | No. 595 Squadron RAF |
| 6 EFTS | No. 6 Elementary Flying Training School |
| 6 FTS | No. 6 Flying Training School RAF |
| 6 FTS | No. 6 Flying Training School |
| 6 FTS | No. 6 Flying Training School RAF |
| 6 Gp Comm Flt | No. 6 Group Communication Flight |
| 6 MU | No. 6 Maintenance Unit RAF |
| 6 OTU | No. 6 Operational Training Unit RAF |
| 6 RFS | No. 6 Reserve Flying School |
| 6 SFTS | No. 6 Service Flying Training School |
| 6 Sqn | No. 6 Squadron RAF |
| 6 Sqn RAAF | No. 6 Squadron RAAF |
| 60 OTU | No. 60 Operational Training Unit RAF |
| 60 Sqn | No. 60 Squadron RAF |
| 600 Sqn | No. 600 Squadron RAF |
| 601 Sqn | No. 601 Squadron RAF |
| 602 Sqn | No. 602 Squadron RAF |
| 603 Sqn | No. 603 Squadron RAF |
| 604 Sqn | No. 604 Squadron RAF |
| 605 Sqn | No. 605 Squadron RAF |
| 606 Sqn | No. 606 Squadron RAF |
| 607 Sqn | No. 607 Squadron RAF |
| 608 Sqn | No. 608 (North Riding) Squadron RAF |
| 608 Sqn | No. 608 Squadron RAF |
| 609 Sqn | No. 609 Squadron RAF |
| 609 Sqn | No. 609 (West Riding) Squadron RAF |
| 609 Sqn | No. 609 Squadron RAF |
| 61 Grp Comm Flt | No. 61 Group Communication Flight |
| 61 OTU | No. 61 Operational Training Unit RAF |
| 61 Sqn | No. 61 Squadron RAF |
| 610 Sqn | No. 610 Squadron RAF |
| 611 Sqn | No. 611 Squadron RAF |
| 612 Sqn | No. 612 Squadron RAF |
| 613 Sqn | No. 613 Squadron RAF |
| 614 Sqn | No. 614 Squadron RAF |
| 614A Sqn | No. 614A Squadron RAF |
| 615 Sqn | No. 615 Squadron RAF |
| 616 Sqn | No. 616 Squadron RAF |
| 617 Sqn | No. 617 Squadron RAF |
| 618 Sqn | No. 618 Squadron RAF |
| 619 Sqn | No. 619 Squadron RAF |
| 62 Grp Comm Flt | No. 62 Group Communication Flight |
| 62 Sqn | No. 62 Squadron RAF |
| 62? Sqn | No. 62? Squadron RAF |
| 620 Sqn | No. 620 Squadron RAF |
| 621 Sqn | No. 621 Squadron RAF |
| 622 Sqn | No. 622 Squadron RAF |
| 622 Sqn & Airwork | No. 622 Squadron RAF?&?Airwork Ltd. |
| 623 Sqn | No. 623 Squadron RAF |
| 624 Sqn | No. 624 Squadron RAF |
| 625 Sqn | No. 625 Squadron RAF |
| 626 Sqn | No. 626 Squadron RAF |
| 627 Sqn | No. 627 Squadron RAF |
| 628 Sqn | No. 628 Squadron RAF |
| 629 Sqn (not formed) | No. 629 Squadron RAF |
| 63 Grp Comm Flt | No. 63 Group Communication Flight |
| 63 OTU | No. 63 Operational Training Unit RAF |
| 63 Sqn | No. 63 Squadron RAF |
| 630 Sqn | No. 630 Squadron RAF |
| 631 Sqn | No. 631 Squadron RAF |
| 632 Sqn (not formed) | No. 632 Squadron RAF |
| 635 Sqn | No. 635 Squadron RAF |
| 636 Sqn (not formed) | No. 636 Squadron RAF |
| 637 Sqn (not formed) | No. 637 Squadron RAF |
| 638 Sqn (not formed) | No. 638 Squadron RAF |
| 639 Sqn | No. 639 Squadron RAF |
| 64 Grp Comm Flt | No. 64 Group Communication Flight |
| 64 Sqn | No. 64 Squadron RAF |
| 640 Sqn | No. 640 Squadron RAF |
| 641 Sqn (not formed) | No. 641 Squadron RAF |
| 642 Sqn (not formed) | No. 642 Squadron RAF |
| 643Sqn (not formed) | No. 643 Squadron RAF |
| 644 Sqn | No. 644 Squadron RAF |
| 645 Sqn (not formed) | No. 645 Squadron RAF |
| 646 Sqn (not formed) | No. 646 Squadron RAF |
| 647 Sqn (not formed) | No. 647 Squadron RAF |
| 648 Sqn (not formed) | No. 648 Squadron RAF |
| 649 Sqn (not formed) | No. 649 Squadron RAF |
| 65 Sqn | No. 65 Squadron RAF |
| 650 Sqn | No. 650 Squadron RAF |
| 651 Sqn | No. 651 Squadron RAF |
| 652 Sqn | No. 652 Squadron RAF |
| 654 Sqn | No. 654 Squadron RAF |
| 655 Sqn | No. 655 Squadron RAF |
| 657 Sqn | No. 657 Squadron RAF |
| 66 Grp Comm Flt | No. 66 Group Communication Flight |
| 66 Sqn | No. 66 Squadron RAF |
| 660 Sqn | No. 660 Squadron RAF |
| 661 Sqn | No. 661 Squadron RAF |
| 662 Sqn | No. 662 Squadron RAF |
| 663 Sqn | No. 663 Squadron RAF |
| 664 Sqn | No. 664 Squadron RAF |
| 666 Sqn | No. 666 Squadron RAF |
| 667 Sqn | No. 667 Squadron RAF |
| 67 Sqn | No. 67 Squadron RAF |
| 679 Sqn | No. 679 Squadron RAF |
| 68 Sqn | No. 68 Squadron RAF |
| 69 Sqn | No. 69 Squadron RAF |
| 691 Sqn | No. 691 Squadron RAF |
| 692 Sqn | No. 692 Squadron RAF |
| 7 (Belgian AF) Sqn | No. 7 (Belgian AF) Squadron RAF |
| 7 ANS | No. 7 Air Navigation School |
| 7 EFTS | No. 7 Elementary Flying Training School |
| 7 FTS | No. 7 Flying Training School RAF |
| 7 FTS | No. 7 Flying Training School |
| 7 FTS | No. 7 Flying Training School RAF |
| 7 FTS | No. 7 Flying Training School |
| 7 RFS | No. 7 Reserve Flying School |
| 7 SFTS | No. 7 Service Flying Training School |
| 7 Sqn RAAF | No. 7 Squadron RAAF |
| 7 Sqn SAAF | 7 Squadron SAAF |
| 70 Sqn | No. 70 Squadron RAF |
| 72 Sqn | No. 72 Squadron RAF |
| 74Wg. Cal. Flt | No. 74 Wing Calibration Flight |
| 75 Sqn | No. 75 Squadron RAF |
| 75Wg. Cal. Flt | No. 75 Wing Calibration Flight |
| 76 Wg Cal Flt | No. 76 Wing Calibration Flight |
| 76Wg. Cal. Flt | No. 76 Wing Calibration Flight |
| 77 Sqn | No. 77 Squadron RAF |
| 77 Sqn & 271 Sqn | No. 77 Squadron RAF?&?No. 271 Squadron RAF |
| 77 Sqn & 31 Sqn | No. 77 Squadron RAF?&?No. 31 Squadron RAF |
| 78 Sqn | No. 78 Squadron RAF |
| 79 Sqn | No. 79 Squadron RAF |
| 8 (A) FTS | No. 8 (Advanced) Flying Training School |
| 8 (A)FTS | No. 8 (Advanced) Flying Training School |
| 8 EFTS | No. 8 Elementary Flying Training School |
| 8 FTS | No. 8 Flying Training School |
| 8 FTS | No. 8 Flying Training School RAF |
| 8 Gp Comm Flt | No. 8 Group Communication Flight |
| 8 MU | No. 8 Maintenance Unit RAF |
| 8 OTU | No. 8 Operational Training Unit RAF |
| 8 RFS | No. 8 Reserve Flying School |
| 8 Sqn | No. 7 Squadron RAF |
| 8 Sqn | No. 8 Squadron RAF |
| 8 Sqn | No. 7 Squadron RAF |
| 8 Sqn | No. 8 Squadron RAF |
| 8 Sqn RAAF | No. 8 Squadron RAAF |
| 80 Sqn | No. 70 Squadron RAF |
| 80 Sqn | No. 80 Squadron RAF |
| 8016 Flt | No. 1680 Flight RAF |
| 81 OTU | No. 81 Operational Training Unit RAF |
| 81 Sqn | No. 71 Squadron RAF |
| 81 Sqn | No. 81 Squadron RAF |
| 81 Sqn | No. 71 Squadron RAF |
| 82 OTU | No. 82 Operational Training Unit RAF |
| 82 Sqn | No. 72 Squadron RAF |
| 82 Sqn | No. 82 Squadron RAF |
| 82 Sqn | No. 72 Squadron RAF |
| 82 Sqn | No. 82 Squadron RAF |
| 83 Gp Comm Flt | No. 83 Group Communication Flight |
| 83 Gp SU | No. 83 Group Support Unit |
| 83 OTU | No. 83 Operational Training Unit RAF |
| 83 Sqn | No. 83 Squadron RAF |
| 83 Sqn | No. 73 Squadron RAF |
| 83 Sqn | No. 83 Squadron RAF |
| 83 Sqn | No. 73 Squadron RAF |
| 84 Gp Comm Flt | No. 84 Group Communication Flight |
| 84 OTU | No. 84 Operational Training Unit RAF |
| 84 Sqn | No. 74 Squadron RAF |
| 84 Sqn | No. 84 Squadron RAF |
| 84 Sqn | No. 74 Squadron RAF |
| 84 Sqn | No. 84 Squadron RAF |
| 84 Sqn | No. 74 Squadron RAF |
| 84 Sqn | No. 84 Squadron RAF |
| 85 Gp Comm Flt | No. 85 Group Communication Flight |
| 85 OTU | No. 85 Operational Training Unit RAF |
| 85 OTU | No. 80 Operational Training Unit RAF |
| 85 OTU | No. 85 Operational Training Unit RAF |
| 85 Sqn | No. 75 Squadron RAF |
| 85 Sqn | No. 85 Squadron RAF |
| 86 Sqn | No. 86 Squadron RAF |
| 86 Sqn | No. 76 Squadron RAF |
| 86 Sqn | No. 86 Squadron RAF |
| 87 Gp Comm Flt | No. 87 Group Communication Flight |
| 87 Sqn | No. 87 Squadron RAF |
| 87 Sqn | No. 77 Squadron RAF |
| 87 Wg Comm Flt | No. 87 Wing Communication Flight |
| 88 Gp Comm Flt | No. 88 Group Communication Flight |
| 88 Sqn | No. 78 Squadron RAF |
| 88 Sqn | No. 88 Squadron RAF |
| 88 Sqn | No. 78 Squadron RAF |
| 89 Sqn | No. 89 Squadron RAF |
| 89 Sqn | No. 79 Squadron RAF |
| 9 (A) FTS | No. 9 (Advanced) Flying Training School |
| 9 (A)FTS | No. 9 (Advanced) Flying Training School |
| 9 AFTS | No. 9 Advanced Flying Training School |
| 9 FTS | No. 9 Flying Training School |
| 9 Gp TTF | No. 9 Group Target Towing Flight |
| 9 MU | No. 9 Maintenance Unit RAF |
| 9 RFS | No. 9 Reserve Flying School |
| 9 Sqn | No. 9 Squadron RAF |
| 90 Sqn | No. 90 Squadron RAF |
| 91 Sqn | No. 91 Squadron RAF |
| 92 Sqn | No. 92 Squadron RAF |
| 93 Sqn | No. 93 Squadron RAF |
| 94 Sqn | No. 94 Squadron RAF |
| 94 Sqn | No. 95 Squadron RAF |
| 94 Sqn | No. 94 Squadron RAF |
| 95 Sqn | No. 95 Squadron RAF |
| 956 Sqn | No. 695 Squadron RAF |
| 96 Sqn | No. 96 Squadron RAF |
| 97 Sqn | No. 97 Squadron RAF |
| 98 Sqn | No.98 Squadron RAF |
| 98 Sqn | No. 98 Squadron RAF |
| 99 Sqn | No. 99 Squadron RAF |
| A/SWDU | Air / Sea Warfare Development Unit |
| A/SWDU | Air/Sea Warfare Development Unit |
| A& AEE | Aeroplane & Armament Experimental Establishment |
| A&AEE | Aeroplane & Armament Experimental Establishment |
| Ab UAS | Aberdeen University Air Squadron |
| Aber UAS | Aberdeen University Air Squadron |
| ACS | Airfield Controllers School |
| ADLS | Air Dispatch Letter Squadron |
| AFDE | Air Fighting Development Establishment |
| AFDU | Air Fighting Development Unit |
| AFEE | Airborne Forces Experimental Establishment |
| AOPS | Air Observation Post School |
| APS Acklington | Armament Practice Station Acklington |
| AT Sqn | Air Training Squadron |
| B App S | Beam Approach School |
| BAFO Comm Sqn | British Air Forces of Occupation Communication Squadron |
| BAFO Comm Sqn. | British Air Forces of Occupation Communication Squadron |
| BAFO Comm Wg | British Air Forces of Occupation Communication Wing |
| BBU | Bomb Ballistic Unit |
| BC Comm Sqn | Bomber Command Communication Squadron |
| BCDU | Bomber Command Development Unit |
| BCFU | Bomber Command Film Unit |
| BCIR&E Flt | Bomber Command Instrument Rating and Examining Flight |
| BCIS | Bomber Command Instructors School |
| Birm UAS | Birmingham University Air Squadron |
| BOAC | British Overseas Airways Corporation |
| Brist UAS | Bristol University Air Squadron |
| BSDU | Bomber Support Development Unit |
| BTU | Bombing Trials Unit |
| Camb UAS | Cambridge University Air Squadron |
| CBE | Central Bomber Establishment |
| CCFAU | Coastal Command Fighter Affiliation Unit |
| CCFIS | Coastal Command Flying Instructors School |
| CCIS | Coastal Command Instructors School |
| CFE | Central Fighter Establishment |
| CFS | Central Flying School |
| CGS | Central Gunnery School |
| CN & CS | Central Navigation and Control School |
| CNS | Central Navigation School |
| Coastal Cmd Comm Flt | Coastal Command Communication Flight |
| Colerne Comm. Sqn. | Colerne Communication Squadron RAF |
| CSE | Central Signals Establishment |
| CST Flt | Canberra Standardisation and Training Flight |
| Der UAS | Derby University Air Squadron |
| Dur UAS | Durham University Air Squadron |
| EAAS | Empire Air Armament School |
| EANS | Empire Air Navigation School |
| ECFS | Empire Central Flying School |
| Edin UAS | Edinburgh University Air Squadron |
| EFS | Empire Flying School |
| ERS | Empire Radio School |
| ES Comm Flt | Essex Sector Communication Flight |
| ETPS | Empire Test Pilots School |
| FCC&RS | Fighter Command Control and Reporting School |
| FCCFTS | Fighter Command Communication Flight Training School |
| FCCSTS | Fighter Command Communication Squadron Training School |
| FIU | Fighter Interception Unit |
| FLS | Fighter Leaders School |
| FRS | Flying Refresher School |
| FTCC Flt | Flying Training Command Communication Flight |
| Glas UAS | Glasgow University Air Squadron |
| GPTF | Glider Pick-up Training Flight |
| GPUT Flt | Glider pick-up Training Flight |
| GRU | Gunnery Research Unit |
| HC Flt | Hornet Conversion Flight |
| HOCF | Helicopter Operational Conversion Flight |
| HQ RAF NI Comm Flt | Headquarters Royal Air Force Northern Ireland Communication Flight |
| JASS Flt | Joint Anti-Submarine School Flight |
| K Flt 1 AACU | K Flight 1 Anti-Aircraft Co-operation Unit |
| LAS | Light Aeroplane School |
| Leeds UAS | Leeds University Air Squadron |
| Liv UAS | Liverpool University Air Squadron |
| Lon UAS | London University Air Squadron |
| Lond UAS | London University Air Squadron |
| LTF | Lightning Training Flight |
| M Flt 1 AACU | M Flight 1 Anti-Aircraft Co-operation Unit |
| Maint Cmd Comm Flt | Maintenance Command Communication Flight |
| Man UAS | Manchester University Air Squadron |
| MC Sqn | Metropolitan Communication Squadron |
| Met Comm Sqn | Metropolitan Communication Squadron |
| Metro Comm Flt | Metropolitan Communication Flight |
| Metro Comm. Sqn. | Metropolitan Communication Squadron RAF |
| MFU | Merchant Flying Unit |
| MOTU | Maritime Operational Training Unit |
| MSFU | Merchant Ship Flying Unit |
| N-ES Comm Flt | North-East Sector Communication Flight |
| Nott UAS | Nottingham University Air Squadron |
| NTU | Navigation Training Unit |
| OATS | Officers Advanced Training School |
| Ox UAS | Oxford University Air Squadron |
| Oxf UAS | Oxford University Air Squadron |
| P Flt 1 AACU | P Flight 1 Anti-Aircraft Co-operation Unit |
| PAU | Pilotless Aircraft Unit |
| Perth UAS | Perth University Air Squadron |
| PFT | Polish Fighting Team |
| PRDU | Photographic Reconnaissance Development Unit |
| PRU | Photographic Reconnaissance Unit |
| PTU | Parachute Test Unit |
| Qu UAS | Queens University Air Squadron |
| Queens Flt | Queens Flight RAF |
| Queens UAS | Queens University Air Squadron |
| R Flt, 1 AACU | R Flight, No. 1 Anti-aircraft Co-operation Unit |
| RAF (Bel) TS | RAF (Belgian) Training School |
| RAF Coll FTS | RAF College Flying Training School |
| RAF Fng Coll | RAF Flying College |
| RAF NI Comm Flt | Royal Air Force Northern Ireland Communication Flight |
| RAF SC Flt | RAF Staff College Flight |
| RAFTC | Royal Air Force Technical College |
| Res Cmd Comm Sqn. | Reserve Command Communication Squadron |
| RWE | Radio Warfare Establishment |
| S of ASR | School of Air Sea Rescue |
| S OF ATC | School of Air Traffic Control |
| S OF FC | School of Flying Control |
| S OF MR | School of Maritime Reconnaissance |
| S of P | School of Photography |
| S of Phot | School of Photography |
| S&RTU | Survival and Rescue Training Unit |
| SCH Comm. Sqn. | Supreme Commanders Headquarters Communication Squadron RAF |
| SFU | Signals Flying Unit |
| Silver City | Silver City Airways |
| Soton UAS | Southampton University Air Squadron |
| SS Comm Flt | Southern Sector Communication Flight |
| St And UAS | St. Andrews University Air Squadron |
| St. And UAS | St. Andrews University Air Squadron |
| Swan UAS | Swansea University Air Squadron |
| TT Cmd Comm Flt | Technical Training Command Communication Flight |
| TTTE | Tri-National Tornado Training Establishment |
| U o LAS | University of London Air Squadron |
| ULUAS | University of London Air Squadron |
| Unit Shorthand | Unit |
| WCU | Washington Conversion Unit RAF |
| Wolv UAS | Wolverhampton University Air Squadron |
| WT Flt | Wessex Training Flight |
| WTU | Warwick Training Unit |
| Yates UAS | Yatesbury University Air Squadron |
| (A) | Accountant Branch Officer |
| (E) | Equipment Branch Officer |
| (I) | Intelligence Officer |
| (L) | Legal Branch Officer |
| (M) | Medical Branch Officer |
| (Mc) | Marine Craft Officer |
| (N) | Navigation Instructor Officer |
| (Ph) | Photographic Officer |
| (PM) | Provost-Marshal Duties Officer |
| (PT) | Physical Training Officer |
| (Sp) | Special Duties Office |
| 107 ETC RAC | Regiments, Royal Armoured Corps |
| 10Cav | 10h Queen Victoria's Own Frontier Force (Guides Cavalry) Regiment |
| 10H | 10th Royal Hussars (Prince of Wales's Own) Regiment |
| 11Cav | 11th Prince Albert Victor's Own Cavalry (Frontier Force) Regiment |
| 11H | 11th Hussars (Prince Albert's Own) Regiment |
| 11thIFofC | 11th Regiment (Irish Fusiliers of Canada) |
| 12Cav | 12th Sam Browne's Cavalry (Depot Regiment) |
| 12D | 12th Manitoba Dragoons |
| 12L | 12th Royal Lancers (Prince of Wales's) Regiment |
| 13/18H | 13th/18th Hussars (Queen Mary's Own) Regiment |
| 13Cav | 13th Duke of Connaught's Own Lancers Regiment |
| 14/20H | 14th/20th Hussars Regiment |
| 14Cav | 14th Prince of Wales#s Own Cavalry (Scinde Horse) Regiment |
| 14H | 14th Canadian Light Horse regiment |
| 15/19H | 15th/19th The King's Royal Hussars Regiment |
| 15Cav | 15th Lancers (Depot Regiment) |
| 15H | 15th Alberta Light Horse Regiment |
| 15thALI | 15th Regiment (Argyll Light Infantry) |
| 16/22H | 16th/22nd Saskatchewan Horse Regiment |
| 16/5L | 16th/5th Lancers Regiment |
| 16Cav | 16th Light Cavalry Regiment |
| 17/21L | 17th/21st Lancers Regiment |
| 17Cav | 17th Queen Victoria's Own Cavalry (Poona Horse) Regiment |
| 17CH | 17th Duke of York's Royal Canadian Hussars (7th Reconnaissance Regiment) |
| 17H | 17th Duke of York?s Royal Canadian Hussars Regiment |
| 18Cav | 18th King Edward VII's Own Cavalry Regiment |
| 19Cav | 19th King George V's Own Lancers |
| 19D | 19th Alberta Dragoons Regiment |
| 1B | Pound(s) |
| 1Cav | 1st Duke of York's Own Cavalry (Skinner's Horse) Regiment |
| 1st Div | Deck Division, Forward 5" Guns |
| 1stMus | First Musician |
| 2 I/C | Second-in-Command |
| 2 SUB | Second Subaltern |
| 2/10 D | 2nd/10th Dragoons Regiment |
| 20Cav | 20th Lancers (Depot Regiment) |
| 21AG | 21st Army Group |
| 21Cav | 21st King George V's Own Horse (Central India Horse) |
| 22 DGNS | 22nd Dragoons |
| 22D | 22nd Dragoons Regiment |
| 23H | 23rd Hussars Regiment |
| 24L | 24th Lancers Regiment |
| 25 DGNS | DGNS 25th Dragoons |
| 25D | 25th Dragoons |
| 26H | 26th Hussars Regiment |
| 27L | 27th Lancers Regiment |
| 29thHLI | 29th Regiment (Highland Light Infantry of Canada) |
| 2Cav | 2nd Royal Lancers (Gardner's Horse) Regiment |
| 2IC | Second in command |
| 2nd Div | Deck Division, 40mm Guns |
| 2ndCOR | 2nd Battalion (Central Ontario Regiment) |
| 3 DG | 3rd Carabiniers (Prince of Wales Dragoon Guards) |
| 3Cav | 3rd Cavalry Regiment |
| 3CLY | 3rd County of London Yeomanry (Sharpshooters) Regiment |
| 3DG | 3rd Carabiniers (Prince of Wales's Dragoon Guards) Regiment |
| 3H | 3rd The King's Own Hussars Regiment |
| 3rd Div | Deck Division, Aft 5" Guns |
| 4/7 DG | 4th/7th Royal Dragoon Guards |
| 4/7DG | 4th/7th Royal Dragoon Guards Regiment |
| 404S | 404s |
| 48(ETC) R TKS | Battalions, Royal Tank Regiment |
| 48(ETC) RECCE REGT | Regiments Reconnaissance Corps |
| 4Cav | 4th Duke of Cambridges Own Lancers (Hodson's Horse) Regiment |
| 4CLY | 4th County of London Yeomanry (Sharpshooters) Regiment |
| 4H | 4th The Queen's Own Hussars Regiment |
| 4th Div | Marine Detachment, Port 20mm Guns |
| 5Cav | 5th King Edwardd VII's Own Lancers (Probyn's Horse) Regiment |
| 5DG | 5th Royal Inniskilling Dragoon Guards |
| 5DG (5Innis) | 5th Royal Inniskilling Dragoon Guards Regiment |
| 5th Div | Deck Division, Ordnance handling, Starboard 20mm Guns |
| 60thVRC | 60th Battalion (Victoria Rifles of Canada) |
| 6Cav | 6th Duke of Connaught's Own Lancers (Watson's Horse) Regiment |
| 6CIRU | Number 6 Canadian Infantry Reinforcement Unit |
| 6H | 6th Duke of Connaught?s Royal Canadian Hussars Regiment |
| 7/11H | 7th/11th Hussars Regiment |
| 7Cav | 7th Light Cavalry Regiment |
| 7H | 7th The Queen's Own Hussars Regiment |
| 8Cav | 8th King George V's Own Light Cavalry Regiment |
| 8H | 8th King's Royal Irish Hussars Regiment |
| 8NLH | 8th Princess Louise?s New Brunswick Hussars Regiment |
| 9Cav | The Royal Deccan Horse (9th Horse) Regiment |
| 9L | 9th Queen's Royal Lancers Regiment |
| A | Acting or Assistant or Anti |
| A & SH | Argyle and Sutherland Highlanders (Princess Louise's) |
| A Div | Evaporators, boats, auxilaries, ice machines |
| A Fd Wkshop | Army Field Workshop |
| A of S | Line/angle of sight |
| A PER | Anti-personnel |
| A Pt | Aiming Point |
| A-CDRE | Air Commodore |
| A-L-DAF | Acting-Lance Daffadar |
| A-L.NK | Acting-Lance Naik |
| A-tk | Anti-tank |
| A-V (G) | Aviation officers of the Volunteer Reserve appointed for general service. |
| A-V (N) | Officers commissioned in the Volunteer Reserve and designated as naval aviators upon completion of training as aviation cadets. |
| A-V (RS)2 | Aviation officers of the Volunteer Reserve experienced in electrical engineering. |
| A-V (T)2 | Aviation officers of the Volunteer Reserve who formerly were civil aviation pilots or aviators of the Army, Navy, Marine Corps, or Coast Guard. |
| A. & S.H. of C. | The Argyll and Sutherland Highlanders of Canada (Princess Louise's) |
| A. Fd. Coy. | Army Field Company (A Fd Coy) |
| A. Gp. | Army Group |
| A. PRS | Anti-personnel |
| A. Tank | Anti-Tank |
| A.A. | Anti-Aircraft (AA) |
| A.C.M. | Air Chief Marshal |
| A.C.R.C | Aircrew Receiving Centre |
| A.C.V | Armoured command vehicle |
| A.D.A.G. | Assistant Deputy Adjutant General |
| A.E.A.F. | Allied Expeditionary Air Force |
| A.F.V. | Armoured Fighting Vehicles (AFV) |
| A.G. | Adjutant General |
| A.G.R.A. | Army Group, Royal Artillery |
| A.G.R.E. | Army Group, Royal Engineers |
| A.H.Q. | Army Headquarters |
| A.HAV | Acting Havildar |
| A.N.C.X.F. | Allied Naval Commander-in-Chief, Expeditionary Force |
| A.P.C. | Armoured personnel carrier |
| A.S.S.U. | Air Support Signal Unit |
| A.T.S. | Auxiliary Territorial Service (ATS) |
| A.tk. | Anti-Tank |
| A.V.R.E. | Assault Vehicle, Royal Engineers |
| A/ | a/ |
| A/ | Assistant |
| A/ | Acting (Rank) - higher rank held on a temporary basis - also known as a brevet rank for officers |
| A/ (rank) | Acting |
| A/A | Anti-aircraft |
| A/A | Army Act |
| A/Bandsmn | Assisting Bandsman |
| A/Blkmth | Acting Blacksmith |
| A/C | Aircraft |
| A/C | Air Commodore |
| A/C | Anti-Aircraft |
| A/C | Air Crew |
| A/C/M | Air Chief Marshall |
| A/Capt | Acting Captain |
| A/CDRE | Air Commodore |
| A/CNAS(E) | Assistant Chief of Naval Administration and Supply (Equipment) |
| A/DMin | Assistant Deputy Minister |
| A/DNS | Assistant Director of Naval Stores |
| A/E | Aeronautical Engineering in the Fleet Air Arm |
| A/EA | Acting Electrical Artificer |
| A/ERA | Acting Engine Room Artificer |
| A/G | Anti-Gas |
| A/Joiner | Acting Joiner |
| A/M | Air Marshall |
| A/MEN | Anti-personnel (ammunition) |
| A/NCSO | Acting Naval Control Service Officer |
| A/OA | Acting Ordnance Artificer |
| A/p | All Purpose |
| A/Plbr | Acting Plumber |
| A/Pntr | Acting Painter |
| A/RA | Acting Radio Artificer |
| A/S | Anti Submarine |
| A/S | Anti-Submarine |
| A/SA | Anti-Submarine Artificer |
| A/SD | Anti-Submarine Detector |
| A/Sec | Assistant Secretary |
| A/Shpt | Acting Shipwright |
| A/SLT | Acting Sub-Lieutenant |
| A/SO(CO) | Acting Staff Officer (Combined Operations) |
| A/SR | Air Sea Rescue |
| A/SSFO | Anti-Submarine Ship Fitting Officer |
| A/STTV | Anti-Submarine Target Towing Vessels |
| A/SYacht | Anti-Submarine Yacht |
| A/T | Anti-Tank |
| A/T | Anti-Torpedo |
| A/Tk. | Anti-Tank |
| A/V/M | Air Vice-Marshall |
| A&AEE | Aeroplane and Armament Experimental/Evaluation Establishment |
| A&Dbooks | Admission & Discharge Books |
| A&E | Ammunition and Explosives |
| A&FF | Acceptance & Ferry Flight (129-Trenton) |
| A&GS | Armament & Gunnery School |
| A&IEU | Armament & Instrument Experimental Unit |
| A&Q | Administrative Branches of the Staff |
| A&Q | Administrative Branches to the Staff |
| A&SH | The Argyll and Sutherland Highlanders (Princess Louise's) |
| A&SH (ASH) | The Argyll and Sutherland Highlanders Regiment (Princess Louise's) |
| A&SHigh | Argyle & Sutherland Highlanders of Canada (Princess Louise's) |
| A&SHofC | Argyll & Sutherland Highlanders Regiment of Canada (Princess Louise?s) |
| A&T | Administration and Training |
| A&T Staff | Administrative and Training Staff |
| AA | Anti-Aircraft; or Approving authority; or Air Attache or Army Act |
| AA | Antiaircraft |
| AA | Anti-Aircraft Rate |
| AA | Assistant Adjutant |
| AA | Active Army |
| AA | Anti-Aircraft |
| AA | Army Act |
| AA | Anti-Aircraft or Army Act or Assistant Adjutant or Assembly Area |
| AA & CD | Anti-Aircraft and Coast Defence |
| AA(MG)BRCA | Anti-Aircraft (Machine Gun) Battery, Royal Canadian Artillery |
| AA(MG)BRCAST | Anti-Aircraft (Machine Gun) Battery, Royal Canadian Artillery Searchlight Troop |
| AA(MG)TRCA | Anti-Aircraft (Machine Gun) Troop, Royal Canadian Artillery |
| AA/SA | Acting Anti-Submarine Artificer |
| AA&CD | Anti-Aircraft Coast Defence |
| AA&QMG | Assistant Adjutant and Quartermaster-General |
| AA&QMG | Assistant Adjutant & Quartermaster General |
| AAA | Anti-Aircraft Artillery |
| AAA | Appointed Assistant Adjutant |
| AAA | Anti-Aircraft Artillery |
| AAAFCRCA | Anti-Aircraft Artillery Formation Camp, Royal Canadian Artillery |
| AAARC | Artillery Anti-Aircraft Reinforcement Camp |
| AAB"Z"F | Anti-Aircraft Battery "Z" Force (Iceland) |
| AABS/LTRCA | Anti-Aircraft Battery Searchlight Troop, Royal Canadian Artillery |
| AABSRCCS | Anti-Aircraft Brigade Signals, Royal Canadian Corps of Signals |
| AABW/SRCOC | Anti-Aircraft Brigade Workshop, Royal Canadian Ordnance Corps |
| AAC | Army Air Corps; Anti Aircraft Co-operation |
| AAC | Army Air Corps |
| AACC | Army Air Corps Center |
| AACF | Anti-aircraft Co-operation Flight |
| AACTDC | Army Air Corpse Tactical Development Center |
| AACU | Anti Aircraft Co-operation Unit |
| AAD | Advance ammunition dept |
| AAD | Army Air Defense |
| AAD | Advanced Ammunition Depot or Anti-Aircraft Defence |
| AAEE | Aeroplane and Armament Experimental Establishment |
| AAF | Army Airfield; or Auxiliary Air Force; or Anti-Aircraft Flight; or Allied Air Force |
| AAF | Auxiliary Air Force or Allied Air Force |
| AAFCE | Allied Air Forces Central Europe |
| AAFNE | Allied Air Forces Northern Europe |
| AAFSE | Allied Air Forces Southern Europe |
| AAFVS | Army Armoured Fighting Vehicles |
| AAG | Assistant Adjutant-General |
| AAGORRCA | Anti-Aircraft Gun Operations Room, Royal Canadian Artillery |
| AAGS | Air Armament & Gas School |
| AAGS | Air Armament and Gas School |
| AAI | Allied Armies in Italy |
| AAI | Allied Army in Italy |
| AAITS | Airmen Aircrew Initial Training School |
| AAM | Army Achievement Medal |
| AAMC | Australian Army Medical Corps |
| AAMG | Antiaircraft Machine Gun |
| AANS | Australian Army Nursing Service |
| AANS | Army Auxiliary Nursing Service |
| AAOC | Australian Army Ordnance Corps |
| AAOR | Antiaircraft Operations Room |
| AAP | Anti-Armour Platoon; or Air to Air Missile; or Aircraft Acceptance Park; or Army Aircraft Park |
| AAPC | Anti-Aircraft Practice Camp |
| AAR | Air-to Air Refueling |
| AARRCA | Anti-Aircraft Regiment, Royal Canadian Artillery |
| AAS | Air Armament School |
| AAS | Advanced Air Station |
| AAS/LCoy | Anti-Aircraft Searchlight Company |
| AASC | Army Air Support Control |
| AASF | Advanced Air Striking Force (1939/40) |
| AASL (Coy) | Anti-Aircraft Searchlight Company |
| AATE | Air Armament trials Establishment |
| AATE | Anti-Aircraft Training Establishment |
| AATT&DC | Army Air Transport Training & Development Center |
| AATTF | Anti-Aircraft and Target Towing Flight |
| AAU | Air Ambulance Unit; or Aircraft Acceptance Unit; or Aircraft Assembly Unit |
| AAUS&FWTC | Anti-Aircraft Unit Staging & Fortress Weapon Training Camp |
| AAW | Anti-Air Warfare |
| AB | Airborne |
| AB | Army book |
| AB | Able Seaman |
| AB | Aviation Branch |
| AB | Able Seaman |
| AB | Army Book or Able Seaman or Airborne |
| ABC | Airborne Cigar (transmitter aboard aircraft which jammed German fighter control frequencies) |
| ABC DEFENCE | Defence Atomic Biological Chemical Defence |
| ABCA | Army Bureau of Currrent Affairs |
| ABCA | Army Bureau of Current Affairs |
| ABCD | Atomic, Biological, Chemical & Defensive Warfare Course |
| ABERS. | Aberdeenshire |
| ABGS(ME) | Air Bombing & Gunnery School (Middle East) |
| ABN | Airborne |
| ABOCRCOC | Armoured Brigade Ordnance Company, Royal Canadian Ordnance Corps |
| ABOD | Advanced Base Ordnance Depot |
| ABPO | Army Base Post Office, Canadian Postal Corps |
| ABPostal | Able Seaman (Postal) |
| ABranch | Adjutant General's Branch |
| ABRO | Army Reserve in Burma |
| Abs | Absent, Absence |
| ABS | Army Board Secretariat |
| ABTF | Air Bombing Training Flight |
| ABW/SRCOC | Advanced Base Workshop (Royal Canadian Ordnance Corps) |
| AC | Army Cooperation |
| AC | Aircraftman |
| AC | Aircraft Controlman |
| AC | Armourer's Crew |
| AC | Armoured Car |
| AC | Ambulance Corps |
| AC | Army Corps |
| AC | Aircraft Carrier |
| AC | Armoured Car or Aircraft or Aircraftman |
| AC Austria | Allied Commission Austria |
| AC-LT | Acting Lieutenant |
| AC-OSAILS | Army Co-operative Squad Air Intelligence Liaison Section |
| AC-QM | Acting Quarter Master |
| AC-SE | Acting Sergeant |
| AC&R | Appointments, Commissions and Rewards |
| AC&WSqn | Aircraft Control & Warning Squadron |
| AC1 | Aircraftman First Class |
| AC1 | Aircraftman 1st Class |
| AC2 | Aircraftman Second Class |
| AC2 | Aircraftman 2nd Class |
| ACAC | Aircrew Allocation Center |
| ACATC | Air Cadets Adventure Training Center |
| ACAV | Armored Cavalry Assault Vehicle |
| ACBO | Acting Bombardier |
| ACC | Army Co-operation Command; or Allied Control Commission; or Air Control Center; or Armored Car Company |
| ACC | Army Catering Corps |
| ACC | Anglican Church of Canada |
| ACC | Army Cycling Corps or Army Catering Corps |
| ACC(I) | Atlantic Convoy Conference Minutes |
| ACCF | Army Co-operation Command Communication Flight |
| ACCGS | Air Cadet Central Gliding School |
| AccKd | Accidentally Killed |
| ACCN | Accommodation |
| ACCN | Accommodation |
| ACCPT | Acting Captain |
| ACCU | Airborne Car Contact Unit |
| ACD | Army Chaplain's Department or Assistant Chaplain General |
| ACDC | Aircrew Dispatch Center |
| ACDU | Army Co-operation Development Unit |
| ACDU (ME) | (ME) Air Combat Development Unit (Middle East) |
| ACDW | Air Crew Disposal Wing |
| ACEM | Aviation Chief Electrician's Mate |
| ACF | Air Command Far East |
| ACFAWF | Air Command Fare East All Weather Flight |
| ACFSS | Air Cadets Flying Scholarship Scheme |
| ACG | Army Chaplain General |
| ACG | Assistant Chaplin-General |
| ACGFSOC | Air Cadet Gliding Flight Safety Officer's Course |
| ACGS | Assistant Chief of the General Staff |
| ACGS(OR) | Assistant Chief of the General Staff (Operational Requirements) |
| ACH | Air Craft Hand |
| ACH | Advanced Chain Home |
| ACHQ | Air Command Headquarters |
| ACHRCAMC | Alton Convalescent Hospital, Royal Canadian Army Medical Corps |
| ACHU | Aircrew Holding Unit |
| ACHU | Armoured Corps Holding Unit |
| ACI | Army Council Instruction |
| ACI | Army Council Instruction |
| ACIAF | Appraisal Course Interim Army Force |
| ACIS | Air Council Instructions |
| ACK | Acknowledge, acknowledged or acknowledgment |
| ACk | Assistant Cook |
| Ack | Acknowledge |
| Ack-ack | Anti-Aircraft |
| AckAck | Anti-Aircraft |
| ACM | Air Chief Marshal |
| ACM | Aviation Chief Metalsmith |
| ACM | Air Chief Marshal |
| ACMF | Allied Central Mediterranean Force |
| ACMM | Aviation Chief Machinist's Mate |
| ACNI | Assistant Commander of Naval Information |
| ACNS | Assistant Chief of the Naval Staff |
| ACO | Advanced Chain Overseas (radar) |
| ACO | Air Cadet Organization |
| ACO | Air Cadet Officer |
| ACO | Air Cadet Organisation |
| ACO-WPA | Area Commandant Order - Work Point Area |
| ACOL | Area Coordinator of Official Languages |
| ACOM | Aviation Chief Ordnanceman |
| ACOp | Aircraft Control Operator |
| ACP | Air Cadet Publication (derived from APs); or Aerodrome Control Pilot |
| ACP | Army Composite Platoon |
| ACPLofH | Acting Corporal of Horse |
| ACPNTS | Air Cadets Pilot Navigation Training Scheme |
| ACR | Airfield Control Radar |
| ACR | Armoured Car Regiment |
| ACR(RCD) | Armoured Car Regiment, Royal Canadian Dragoons |
| ACR(RCD)AP | Armoured Car Regiment, Royal Canadian Dragoons Advanced Party |
| ACRC | Air Crew Reception Centre |
| ACRC (ME) | (ME) Air Crew Reception Centre Middle East |
| ACRM | Aviation Chief Radioman |
| ACRM | Aviation Chief Radioman |
| ACRS | Air Crew Refresher School |
| ACRT | Aviation Chief Radio Technician |
| ACS | Airfield Construction Squadron |
| ACS | Air Control Squadron |
| ACS | Air Cadet Squadron |
| ACS | Distinguishing Letters on Files of Joint Service Committee, Atlantic Coast |
| ACS | Atlantic Command Signals |
| ACSAILSCASF | Atlantic Command Squadron Army Intelligence Liaison Section, Canadian Active Service Force |
| ACSB | Air Crew Selection Board |
| ACSEA | Air Command South East Asia |
| ACSEA | Air Command South East Asia |
| ACSEA/ASS | Air Command South East Asia Air Service Squadron |
| ACSIC | Atlantic Command Security Intelligence Section |
| ACSILS | Atlantic Command Squadron Intelligence Liaison Section |
| ACSqn | Army Co-operation Squadron (Royal Canadian Air Force) |
| ACSU | Acting Surgeon |
| Act | Acting (Rank) |
| ACT | Annual Camp Training |
| ACTC | Air Cadet Training Centre |
| ACU | Army Cooperation Unit |
| ACU | Air Conditioning Unit |
| ACU | Aircrew Conditioning Units |
| ACV | Armoured Command Vehicle |
| ACV | Armoured Cavalry Vehicle |
| ACV | Aircraft Carrier Vessels |
| ACV | Armoured Command Vehicle |
| ACYCCorps | Army Cyclist Corps |
| AD | Aircraft Depot; or Air Defence; or After duty |
| AD | Administration & Discipline (Director of Organization) |
| AD | Arvida Defences |
| AD | Air Radio Mechanic (Air Radar) |
| AD | Artillery Depot or Air Defence or Armoured Division or Air Despatch |
| Ad | Administrative |
| AD CORPS | Army Dental Corps |
| AD of S(2) | Assistant-Director of Signals (Civil Aviation) |
| AD Svy | Assistant-Director of Survey |
| AD Tn | Assistant-Director Training |
| AD(Svy) | Assistant Director of Surveys |
| AD&M | Advanced Driving and Maintenance |
| AD&MS | Advanced Driving and Maintenance School |
| AD&MTCRCAR | Advanced Driving and Maintenance Training Centre, Royal Canadian Artillery Reinforcements |
| ADA | Assistant-Director of Accounts |
| ADAG | Assistant Deputy Adjutant-General |
| ADATS | Air Defense Anti-Tank System |
| ADB(RdeC)CICEC | Airfield Defence Battalion (Regiment de Chateauguay) Canadian Infantry Corps, East Coast |
| ADC | Aide de Campe |
| ADC | Army Dental Corps |
| ADC | Air Defence Centre/Aide de Camp |
| ADC | Aide-de-Camp |
| ADC | Aerodrome Defence Company |
| ADC | Aide de Camp or Air Defence Centre or Army Dental Corps |
| ADCA | Assistant-Director of (Home) Civil Aviation |
| ADCC | Air Defence Cadet Corps (established 1938, see ATC) |
| ADCC | Air Defence Cadet Corps |
| ADCP(N) | Assistant Director Civilian Personnel (Navy) |
| ADCS | Air Defence Cooperation Squadron |
| ADDRSD | Addressed |
| ADDS | Assistant Director of Dental Services |
| Addsd | Addressed |
| ADED | Assistant Director of Engineer Development |
| ADEM | Air Defences Eastern Mediterranean |
| ADES | Assistant Director of Educational Services |
| ADES | Assistant Director of Engineer Services |
| ADF | Aircraft Delivery Flight |
| ADF(U) | Aircraft Delivery Flight (Unit) |
| ADG | Assistant-Director-General (in combination) |
| ADG Tn | Assistant-Director-General of Transportation |
| ADGB | Air Defence of Great Britain (= Fighter Command) |
| ADGB | Air Defence of Great Britain |
| ADGD | Assistant-Director of Ground Defence |
| ADGE | Air Defence Ground Environment |
| ADH | Assistant-Director of Hygiene |
| ADHOC(G) | Ad Hoc Greek Battalion |
| ADHP | Assistant Director of Hydrogen Production |
| ADI | Assistant Director of Intelligence |
| ADIO | Assistant Director of Internment Operations |
| ADJ | Adjutant |
| Adj | Adjutant - administrative assistant to a commanding officer |
| ADJ | Adjutant |
| ADJT | Adjutant |
| Adjt | Adjutant - administrative assistant to a commanding officer |
| ADJT | Adjutant |
| ADLS | Air Despatch Letter Service |
| ADLS | Air Delivery Letter Service |
| ADM | Administration or administrative |
| ADM | Administration |
| ADM | Assistant Deputy Minister; or Air Defence Missile |
| ADM | Admiral or General |
| Adm | Administration |
| Adm | Admitted - soldiers entering hospital for medical treatment |
| ADM | Assistant Deputy Minister |
| ADM | Administration or Admiral or Admitted or Administrative |
| Adm. | Administration |
| Adm'd | Admitted |
| ADM(FIN CS) | CS) Assistant Deputy Minister (Finance and Corporate Services) |
| ADM(HR-CIV) | Assistant Deputy Minister (Human Resources Civilian) |
| ADM(HR-MIL) | Assistant Deputy Minister (Human Resources -Military) |
| ADM(IE) | Assistant Deputy Minister (Infrastructure and Environment) |
| ADM(IM) | Assistant Deputy Minister (Information Management) |
| ADM(MAT) | Assistant Deputy Minister (Materiel) |
| ADM(N) | Assistant Deputy Minister (Naval) |
| ADM(PA) | Assistant Deputy Minister (Public Affairs) |
| ADMC | Assistant-Director of Military Co-operation |
| AdmClk | Administrative Clerk |
| ADMGO | Assistant Deputy Master General of Ordnance |
| Admin | Administration |
| ADMN | Assistant Deputy Minister (Naval) |
| ADMO | Assistant-Director of Meterorological Office |
| ADMS | Assistant Director of Medical Services |
| ADMS | Assistant Director of Medical Services |
| ADNO | Assistant Director Naval Ordnance |
| ADNP | Assistant Director of Naval Personnel |
| ADO (Est) | Assistant-Director of Organisation (Establishments) |
| ADOS | Assistant Director of Ordnance Services |
| ADOS | Assistant Director of Ordnance Services |
| ADP | Aerodrome Defence Platoon |
| ADPL | Assistant-Director of Pioneer and Labour |
| ADPR | Assistant-Director of Press Relations |
| ADQMG | Assistant Deputy Quartermaster General |
| ADQMG(AE) | Assistant Deputy Quartermaster General (Army Equipment) |
| ADRC | Assistant-Director of Regional Control |
| ADRCAPC | Aldershot Detachments, Royal Canadian Army Pay Corps |
| ADRCASC | Area Detachment, Royal Canadian Army Service Corps |
| Adrep. | Administrative Report |
| ADRU | Air Dispatch & Reception Unit |
| ADS | Advanced Dressing Station |
| ADS | Army Dressing Station |
| ADS | Advanced Dressing Station or Army Dental Services |
| ADSM | Assistant-Director of Servicing and Maintenance |
| ADSRCS | Armoured Divisional Signals, Royal Canadian Corps of Signals |
| ADST | Assistant-Director of Supplies and Transport |
| ADT | Armoured Division Troops |
| ADTC(CAD)RCASC | Armoured Division Troops Company (Canadian Armoured Division), Royal Canadian Army Service Corps |
| ADTCSRCASC | (Armoured) Division Troop Carrying Section, Royal Canadian Army Service Corps |
| ADTD | Assistant Director Technical Division |
| ADTech | Air Defence Technician |
| ADU | Aircraft Delivery Unit |
| ADUC | Advanced Driving Universal Carriers |
| ADV | Advance or advanced |
| Adv | Advance(d) |
| ADV | Advanced or Advance |
| Adv Bse | Advanced Base |
| Adv Gd | Advanced Guard |
| Adv. | Advance |
| ADVS | Assistant Director of Veterinary Services |
| Advtrg | Advanced Training |
| ADW (M&E) | Assistant-Director of Works (Mechanical and Electrical) |
| ADW/SPACRCASC | Advanced Detachment Workshop Pl Art Company, Royal Canadian Army Service Corps |
| ADWAAF | Assistant-Director of the Women's Auxiliary Air Force |
| AE | Air Efficiency award |
| AE | Algerine Escorts |
| AE | Aircraft Establishment or Air Efficiency Award or Army Equipment |
| AEAES | Air Electronics & Air Engineers School |
| AEAF | Allied Expeditionary Air Force(s) |
| AEC | Army Educational Corps |
| AEC | Assessment& Evaluation Centre |
| AEC | Army Educational Corps |
| AEC | Army Enlistment Centre |
| AEC | Army Education Corps or Army Educational Company or Associated Equipment Company |
| AED | Aircraft Equipment Depot |
| AED | Ammunition Empties Detachment |
| AEDM | Army Education |
| AEF | Air Experience Flight |
| AEF | Allied Expeditionary Force |
| AEF | American Expeditionary Force |
| AEinC | Assistant Engineer in Chief (Naval) |
| AEM | Aviation Electrician's Mate Inspect, maintain, repair and install all electrical equipment in aircraft. |
| AEM | Air Engine Mechanic |
| AEM1c | Aviation Electrician's Mate, First Class |
| AEM2c | Aviation Electrician's Mate, Second Class |
| AEM3c | Aviation Electrician's Mate, Third Class |
| AEME | Australian Electrical and Mechanical Engineers |
| AEME | Australian Electrical and Mechanical Engineers |
| AEO | Assistant Embarkation Officer |
| AER | Army Emergency Reserve |
| AERE | Aerospace Engineer |
| AerM | Aerographer's Mate Make weather observations. Read weather codes and signals. |
| AerM1c | Aerographer's Mate, First Class |
| AerM2c | Aerographer's Mater, Second Class |
| AerM3c | Aerographer's Mate, Third Class |
| AES | Air Electronics School; or Armament Experimental Station |
| AETech | Aero Engine Technician |
| AEV | Armoured Engineer Vehicle |
| AEV | Armoured Engineer Vehicle |
| AEW | Airborne Early Warning |
| AF | Army form |
| AF | Air Fitter |
| AF | Active Force |
| AF | Army Form or Air Formation |
| AFBRCCS | Army Field Brigade, Royal Canadian Corps of Signals |
| AFC | Armed Forces Council; or Australian Flying Corps; or Air Force Cross (medal) |
| AFC | Armed Forces Council |
| AFC | Air Force Cross |
| AFC | Air Force Cross or Australian Flying Corps |
| AFD | Air Fields Defense |
| AFD | Airborne Forces Depot |
| AFDE | Air Fighting Development Establishment |
| AFDS | Air Fighting Development Squadron, part of CFE |
| AFDU | Air Fighting Development Unit |
| AFDU | Air Fighting Development Unit |
| AFDU (S) | (S)Air Fighting Development Unit/Squadron |
| AFE | Airborne Forces Establishment |
| AFEE | Airborne Forces Experimental Establishment |
| AFG | Air Forces Gulf |
| AFHQ | Allied Forces Headquarters |
| AFHQ | Airfield Headquarters |
| AFHQ | Allied Forces Headquarters |
| AFHQ | Air Force Headquarters |
| AFHQ | Airfield Headquarters |
| AFM | Air Force Medal |
| AFM | Air Frame Mechanic |
| AFM | Air Force Medal |
| Afm | Aforementioned |
| AFM | Aforementioned or Air Force Medal |
| AFO | Admiralty Fleet Orders |
| AFPac | Allied Forces Pacific |
| Afr | Afridi Battalion |
| AFRS | Armed Forces Radio Service |
| AFRS | Army Field Regiment Signal |
| AFRSRCASC | Army Field Regiment Section, Royal Canadian Army Service Corps |
| AFRU | Advance Flying & Refresher Unit |
| AFS | Auxiliary Fighter Squadron |
| AFS | Advanced Flying School |
| AFS | Air Formation Signals or Auxiliary Fire Servce |
| AFS(ME) | Advanced Flying School (Middle East) |
| AFSC | Armed Forces Staff College |
| AFSCRCASC | Armed Forces Sleeper Company, Royal Canadian Army Service Corps |
| AFSI(I) | Advanced Flying School (India) |
| AFSS | Army Field Security Section |
| AFTCC | Air Force Troop Carrier Command |
| AFTDU | Airborne Forces Tactical Development Unit |
| AFTech | Airframe Technician |
| AFTS | Advanced Flying Training School |
| AFTU | Advanced Flying Training Unit; or Air Firing Training Unit |
| AFU | Advanced Flying Unit |
| AFU | Air Fighting Unit |
| AFU | Advance Flying Unit |
| AFV | Armoured fighting vehicle(s) |
| AFV | Armoured Fighting Vehicle |
| AFV | Armoured Fighting Vehicle |
| AFV | Armoured Fighting Vehicle |
| AFVW/SSRCOC | Armoured Fighting Vehicle Workshop Section, Royal Canadian Ordnance Corps |
| AFW | Army Field Workshops |
| AFW/SRCOC | Army Field Workshop, Royal Canadian Ordnance Corps |
| AFWE | Air Forces Western Europe |
| AG | Anti-gas |
| AG | Adjudant General |
| AG | Air Gunner |
| AG | Adjutant General |
| AG | Air Gunner |
| AG | Adjutant-General or Air Gunner |
| AG | Air to Ground or Air Gunner or Anti-Gas or Adjutant General |
| AG1,2or3 | Adjutant General Staff Officer 1, 2 or 3 |
| AGB | Adjutant General's Base |
| AGB | Adjutant Generals Base |
| AGBS | Air Gunnery & Bombing School |
| AGC | Adjutant Generals Corps |
| AGC | Adjutant Generals Corps |
| AGCB | Awarded Good Conduct Badge |
| AGDU | Army Guard Dog Unit |
| AGGTS | Air Gunners Ground Training School |
| AGHU | "A" Group Holding Unit |
| AGL | Air Gun Laying |
| AGME | Aircraft Gun Mounting Establishment |
| AGR | Army General Reserve |
| AGRA | Army Group RA (an artillery brigade) |
| AGRA | Army Group Royal Artillery |
| AGRA | Army Group Royal Artillery |
| AGRA | Army Group Royal Artillery |
| AGRCA | Army Group Royal Canadian Artillery |
| AGRCAS | Army Group Royal Canadian Artillery Signals |
| AGRE | Army Group, Royal Engineers |
| AGRE | Army Group Royal Engineers |
| AGRS | Advanced Ground Radio School |
| AGRS | Air & Ground Radio School |
| AGRU | "A" Group Reinforcement Unit |
| AGS | Air Gunners School; or Aircrew Grading School |
| AGS(ME/I) | Air Gunners School (Middle East/India) |
| AGT | Air Work & General Trading (part of the CRO) |
| AGT | Advanced Gliding Training (Air Cadets) |
| AGTS | Air Graduate Training School |
| AGTS | Aircrew Graduate Training Schools |
| AGU | Air work Grading Unit |
| AGYMST | Army Gymnastic Staff |
| AH | Aircraft Handler |
| AH | Admiralty Fleet Order |
| AHC | Army Hospital Corps |
| AHQ | Air Headquarters |
| AHQ | Army Headquarters |
| AHQ(I) | Air Headquarters (India) |
| AHQCAPO | Area Headquarters Canadian Army Post Office |
| AHU | Artillery Holding Unit |
| AHU | Administrative and Holding Unit(s) |
| AI | Airborne Interception night fighter radar equipment |
| AI | Assistant Instructor |
| AI | Acting Interpreter |
| AIB | "A" Infantry Battalion |
| AIC | Australian Intelligence Corps |
| AICF | AI Conversion Flight |
| AICVGofC | Angler Internment Camp Veterans Guard of Canada |
| AID | Aeronautical Inspection District |
| AIEMSupt | Aircraft Instrument and Electrical Maintenance Superintendent |
| AIEU | Armament and Instrument Experimental Unit |
| AIF | Australian Imperial Forces |
| AIF | Australian Imperial Force |
| AIF | Australian Imperial Force |
| AIFV | Armoured Infantry Fighting Vehicle |
| AIG | Address Indicating Group |
| AILO | Air Intelligence Liaison Officer |
| AILS(A)D | Army Intelligence Liaison Section (Armoured) Division |
| AILSection | Army Intelligence Liaison Section |
| AILSection | Air Intelligence Liaison Section |
| AIR | Assistant Instructor's Regiment |
| AIR | Melbourne |
| Air Bse | Air Base |
| AIR FMN SIGS | Air Formation Signals |
| Air Fmn. Sigs. | Air Formation Signals (Air Fmn Sigs) |
| AirB | Air Bomber |
| AirBosn | Air Boatswain |
| AIRCOM | Air Command (Airforce) |
| AirlineCoy | Airline Company, Royal Engineers |
| AIRO | Army of India Reserve of Officers |
| AirTCon | Air Traffic Controller |
| AIRTPS | Airborne troops |
| AIS | Air Interception School |
| AIS | Aeronautical Inspectors School |
| AIT | Agreement on Internal Trade |
| AITC(R) | Advanced Infantry Training Centre (Reserve) |
| AITF | AI Training Flight |
| AJAGS | Assistant Judge Advocates General |
| AKA | Also Known As |
| AL | sec Air liaison section |
| AL | Air Mechanic (Electrics) |
| AL | Air Landing or Air Liaison |
| AL/CPL | Acting Lance Corporal |
| ALC | Assault Landing Craft |
| ALC | Assault Landing Craft |
| ALFSEA | Allied Land Forces South East Asia |
| ALFSEA | Allied Land Forces South East Asia |
| ALG | Advance Landing Ground |
| Alg | Algerine Escorts |
| ALG | Advanced Landing Ground |
| AlgR | Algonquin Regiment |
| ALI | (15th Regiment) Argyll Light Infantry |
| Allce | Allowance |
| ALM | American Liaision and Munitions |
| ALO | Air Liaison Officer |
| ALO | Australian Liaison Officer (Air) |
| ALO | Air Liaison Officer or Army Liaison Officer |
| ALOC | Advanced Logistics Officers Course |
| Aloquins | The Algonquin Regiment |
| Alq. R. | The Algonquin Regiment |
| ALQR | Algonquin Regiment |
| ALS | Air Landing School (India) |
| Alta | Alberta |
| AM | Air Marshal; or Air Ministry |
| AM | Aviation Metalsmith Repair airplane metal parts. Know principles and theory of flying. |
| AM | Air Mechanic (1st, 2nd or 3rd Class) |
| AM | Albert Medal |
| AM | Naval Airman |
| AM | Air Marshal or Air Ministry or Albert Medal |
| Am'd | Amended |
| AM(No) | Admiralty Publication |
| AM1c | Aviation Metalsmith, First Class |
| AM2c | Aviation Metalsmith, Second Class |
| AM3c | Aviation Metalsmith, Third Class |
| AMAE | Air Member for Aeronautical Engineering |
| AMAP | Air Member Air Plan |
| AMAS | Air Member for Air Staff |
| AMB | Ambulance |
| AMB | Armoured Motor Battery |
| AMB | Ambulance |
| AMC | Armed Merchant Cruiser |
| AMC | Alberni Military Camp |
| AMC | Arnprior Military Camp |
| AMC | Army Medical Centre |
| AMC | Australian Medical Corps |
| AMC | Armed Merchant Cruiser |
| AMCU | Anti-Malarial Control Unit |
| AMD | Auxiliary Manning Depot |
| AMDP | Air Member for Development & Production |
| AME | Armament Maintenance Establishment |
| AMERCA | Armament Maintenance Establishment, Royal Canadian Artillery |
| AMES | Air Ministry Experimental Station (i.e. radar station) |
| AMESS | Air Ministry Experimental Station (ground Radar Station) |
| AMF | Australian Military Forces |
| AMGOT | Allied Military Government of Occupied Territories |
| AMHRCAMC | Alberni Military Hospital, Royal Canadian Army Medical Corps |
| AMHRCAMC | Aldershot Military Hospital, Royal Canadian Army Medical Corps |
| AMHRCAMC | Angler Military Hospital, Royal Canadian Army Medical Corps |
| AMHRCAMC | Arvida Military Hospital, Royal Canadian Army Medical Corps |
| AMM | Aviation Machinist's Mate Assemble, service and repair airplanes and airplane engines. Splice aircraft wiring. Know principles and theory of flying. |
| Amm. | Ammunition |
| AMM1c | Aviation Machinist's Mate, First Class |
| AMM2c | Aviation Machinist's Mate, Second Class |
| AMM3c | Aviation Machinist's Mate, Third Class |
| AMMC | Aviation Machinist's Mate C Aviation carburetor mechanic. |
| AMMF | Air Ministry Meteorological Flight |
| AMMF | Aviation Machinist's Mate F Aviation flight engineer. |
| AMMH | Aviation Machinist's Mate H Aviation hydraulic mechanic. |
| AMMI | Aviation Machinist's Mate I Aviation instrument mechanic. |
| AmmnCol | Ammunition Column |
| Ammo | Ammunition |
| AMMP | Aviation Machinist's Mate P Aviation propeller mechanic. |
| AMN | Ammunition |
| Amn | Ammunition |
| Amn. | Ammunition |
| AMNL | Ammonal (bulk explosives) |
| AMNL CH | Ammonal with charcoal |
| AMO | Air Ministry Order; or Air Movement Order |
| AMO | Army Medal Office |
| AMOR | Annual Military Occupation Review |
| AmoTech | Ammunition Technician |
| AMP | Air Member for Personnel |
| AMPC | Auxiliary Military Pioneer Corps |
| AMPC | Auxiliary Military Pioneer Corps |
| Amph | Amphibian |
| AMPTE | Ambulance Private |
| AMQ | Assistant Quartermaster General |
| AMS | Army Medical Staff |
| AMS | Air Member for Supply |
| AMS | Assistant Military Secretary |
| AMS | Assistant Military Secretary |
| AMSC | Advanced Military Studies Course |
| AMSDU | Air Ministry Servicing Development Unit |
| AMSupt | Aircraft Maintenance Superintendent |
| AMT | Air Member for Training |
| AMTB | Anti Motor Torpedo Boat |
| AMTRS | Area Mechanical Transport Repair Shops |
| AMU | Air Movements Unit |
| AMV | Advanced Modular Vehicle |
| AMWD | Air Ministry Works Department |
| AN | Air Mechanic (Engines) |
| ANAV | Air Navigator |
| ANBS | Air Navigation & Bombing School |
| ANCXF | Allied Naval Commander Expeditionary Force |
| AND | Admiralty Net Defence |
| ANG. | Anglesey |
| ANGLICO | Air and Naval Gunfire Liason Company |
| ANGUS | Angus |
| ANNX | Annexure |
| ANNZ | Annexure |
| ANS | Air Navigation School |
| ANSec | Assistant Naval Secretary |
| Anti-tk | Anti-tank |
| ANTRIM | County Antrim |
| ANZAC | Australian and New Zealand Army Corps |
| ANZAC | Australia and New Zealand Army Corps |
| ANZAC | Australian and New Zealand Army Corps |
| AO | Army Order |
| AO | After Order |
| AO | Air Mechanic (Ordnance) |
| AO | Accountant Officer |
| AO | Army Order |
| AO | Army Order or Accounts Office or Administration Officer |
| AOB Army Observor Battery/Batteries | |
| AOC | Air Officer Commanding; or Army Operations Course |
| AOC | Air Officer Commanding |
| AOC | Army Ordnance Corps |
| AOC | Air Officer Commanding |
| AOC-in-C | Air Officer Commanding in Chief |
| AOCU | Andover Operational Conversion Unit |
| AOD | Advanced ordnance depot |
| AOD | Advanced Ordnance Depot or Army Ordnance Depot |
| AODRCOC | Advanced Ordnance Depot, Royal Canadian Ordnance Corps |
| AOER | Army Officers' Emergency Reserve |
| AOFP | Army Ordnance Field Park |
| AOG | Aircraft On Ground |
| AOM | Aviation Ordnanceman Handle and take care of all aviation weapons. |
| AOM1c | Aviation Ordnanceman, First Class |
| AOM2c | Aviation Ordnanceman, Second Class |
| AOM3c | Aviation Ordnanceman, Third Class |
| AOMB | Aviation Ordnanceman B Aviation bombsight mechanic. |
| AOMT | Aviation Ordnanceman T Aviation turret mechanic. |
| AONS | Air Observers Navigation School |
| AOP | Armoured Observation Post |
| AOP | Air Observation Post |
| AOP | Air Observation Post |
| AOPSRCA | Air Observation Post Squadron, Royal Canadian Artillery |
| AOPSRCAF | Air Observation Post Squadron, Royal Canadian Air Force |
| AOR | Area of Responsibility; or Auxiliary Oiler (Navy) |
| AORG | Army Operational Research Group |
| AOS | Air Observers School |
| AOS | Air Observer School |
| AOTS | Aircrew Officers Training School |
| AOW | Army Ordnance Workshop |
| AOW/SRCOC | Army Ordnance Workshop, Royal Canadian Ordnance Corps |
| AP | Aircraft Park; or Air Publication |
| AP | Ammunition point or armour piercing |
| AP | Aviation Pilot Pilot planes and airships. Serve as plane captain. |
| AP | Administration & Personnel Section (Organization) |
| AP | Apothecary |
| AP | Air Police |
| AP | Aid Post |
| AP | Armour Piercing or Aircraft Park or Aid Post or Ammunition Point |
| AP&DU | Aircraft Preparation& Development Unit |
| AP&Rs | Appointments, Promotions and Retirement List |
| Ap1c | Aviation Pilot, First Class |
| AP2c | Aviation Pilot, Second Class |
| APA-TR | (Advanced Party) Anti-Tank Regiment |
| APC | Armament Practice Camp |
| APC | Armoured Personnel Carrier |
| APC | Army Pay Corps |
| APC | Armoured Personnel Carrier or Armour-piercing capped (projectile) |
| APC (S) | (S) Armament Practice Camp (Station) |
| APCAS | Administration Personnel Canadian Army Shows |
| APCASEU(AS) | Administration Personnel Canadian Auxiliary Services Entertainment Unit (Army Shows) |
| APCBC | Armour-piercing capped wth ballistic cap (projectile) |
| APCBOW/SRCOC | Advanced Party Canadian Base Ordnance Workshop, Royal Canadian Ordnance Corps |
| APCFC | Advance Party Canadian Forestry Corps |
| APCHRCAMC | Alderbrooke Park Convalescent Hospital, Royal Canadian Army Medical Corps |
| APCinC | Air Officer Commanding-in-Chief |
| APCS | Aden Protectorate Communication Squadron |
| APCS & SS | & SSAden Protectorate Control & Support Squadron |
| APD | Army Provost Depot |
| APD | Army Pay Department |
| APD | Air Personnel Department |
| APDOFPRCOC | Advance Party Divisional Ordnance Field Park, Royal Canadian Ordnance Corps |
| APDU | Air Photography Development Unit |
| APE | Address Prior to Enlistment |
| APF | Air Pilotage Flight |
| APFARCAMC | Advance Party Field Ambulance, Royal Canadian Army Medical Corps |
| APHQADADHQ | Advanced Party Headquarters Armoured Division Advance Divisional Headquarters |
| APIS | Army photographic interpretation section |
| APIS | Air Photo Interpretation Section |
| APIS | Army Photographic Interpretation Section |
| APISCintC | Army Photographic Interpretation Section, Canadian Intelligence Corps |
| APLU | Army Pay Ledger Unit |
| APM | Assistant Provost Marshal |
| APM | Assistant Provost Marshal |
| APO | Army post office |
| APO | Army Post Office |
| APOC | Army Post Office Corps |
| Appces | Appendices |
| APPROX | Approximately or approximate |
| APPTD | Appointed |
| Apptmts | Appointments |
| APPU | (Canadian) Army Photo Processing Unit, Canadian Intelligence Corps |
| APPUCPC | Advance Party Postal Unit Canadian Postal Corps |
| APPX | Appendix |
| APPX | Appendix |
| Appx. | Appendix |
| APR | Army Plotting Room |
| APS | Army Postal Service |
| APS | Air Pilotage School; or Armament Practice Station |
| APS | Army Postal Service |
| APS | Army Pigeon Service |
| APS(N) | Assistant Private Secretary To the Minister (Navy) |
| APSF | Aden Protectorate Support Flight |
| APSHOT | Armour-piercing (inert) |
| APTC | Army Physical Training Corps |
| APTC | Army Physical Training Corps |
| APTC | Army Physical Training Corps |
| APTo"Z" F | Attached Personnel to "Z" Force (Iceland) |
| APTS | Army Physical Training Staff |
| APU | Aircraft Preparation Unit |
| APV | Average projectile velocity or armoured patrol vessel |
| AQ | Assistant-Adjutant and Quarter-Master-General |
| AQMG | Assistant Quartermaster-General |
| AQMG | Asistant-Quarter-Master-General |
| AR | Automatic Rifle; or Australian Regiment |
| AR | Airship Rigger Control and moor airships. Know steering and meteorology. |
| AR | Algonquin Regiment |
| AR | Air Radio |
| AR | Air Rigger |
| AR | Army Reserve or Automatic Rifle |
| AR ANALYST | analyst Administrative Review Analyst |
| AR(1H)CACAP | Armoured Regiment, (1st Hussars) Canadian Armoured Corps Advance Party |
| AR(BCD) | Armoured Regiment, British Columbia Dragoons |
| AR(FGH) | Armoured Regiment, (Fort Garry Horse) |
| AR(GGFG)AD | Armoured Regiment, (Governor General's Horse Guards) Armoured Division |
| AR(GGHG)CA | Armoured Regiment, (Governor General's Horse Guards) Canadian Army |
| AR(H) | Armoured Regiment, (Hussars) |
| AR(LSH)(RC)AF | Armoured Regiment, (Lord Strathcona's Horse) (Royal Canadians) Active Force |
| AR(LSH)AP | Armoured Regiment, (Lord Strathcona's Horse) Advance Party |
| ARC | Aircrew Recruiting Centre; or Aircrew Reception Centre |
| ARC | Army Reception Centre |
| ARC | Appraisal and Refresher Course |
| ARC | Automatic Remote Control |
| ARC | cies Automatic Remote Control |
| ARCM | Associate, Royal College of Music |
| ARCR | Armourer's Crew |
| ARD | Aircraft Repair Depot; or Alberta Regimental Depot |
| ARD | Alberta Regimental Depot - facility in England used to assemble men and to store and administer equipment and materials |
| AreaEngr | Area Engineer |
| ARF | Aircraft Repair Flight; or Air Radar Fitter |
| ARFF | Aircraft Rescue & Fire Fighting |
| ARG | Armoured replacement group |
| Argyl LI | The Argyll Light Infantry Regiment |
| ARGYLL. | Argyllshire |
| ARH | Ammunition railhead |
| ARH | Army Rail Head |
| ARH | Ammunition Railhead |
| ARITCIC | Army Refugee Interrogation Team, Canadian Intelligence Corps |
| ARL | Admiralty Research Laboratory |
| ARM | Aviation Radioman Operate radio transmitting and receiving equipment of naval aircraft. |
| Arm(BorG) | Armourer (Bombs or Guns) |
| ARM1c | Aviation Radioman, First Class |
| ARM2c | Aviation Radioman, Second Class |
| ARM3c | Aviation Radioman, Third Class |
| ARMAGH | County Armagh |
| ARMD | Armoured, Armour Corps |
| Armd | Armoured |
| ARMD C | Armoured car |
| Armd C | Armoured Car |
| Armd, Amd | Armoured |
| Armd. | Armoured |
| Armd. Recce. Regt. | Armoured Reconnaissance Regiment (Armd Recce Regt) |
| Armn | Airman or Airmen |
| Armr | Armourer |
| ARMR | Armourer |
| ARmtSPC | Armament Systems Performance Checker |
| ARO | Army routine order |
| ARO | Admiralty Record Office |
| ARO | Administrative Routine Orders |
| ARP | Ammunition refilling point or air raid precautions |
| ARP | Aircraft Repair Park |
| ARP | Air raid precautions or ammunition refilling point |
| ARP | Air Raid Precautions |
| ARP | Air Raid Precautions or Aircraft Repair Park |
| ARRC | Associate Royal Red Cross |
| ARRC | Associate of the Royal Red Cross |
| ARRC | Associate of the Royal Red Cross |
| ARS | Aircraft Repair Section |
| ART | Aviation Radio Technician Maintain all aviation radio equipment. |
| Art | Article |
| Art | Artillery |
| ART | Artillery or Artisan |
| ART WKS COY | Artizan works company |
| Art. Wks. Coy. | Artizan Works Company (Art Wks Coy) |
| Art(y) | Artillery |
| ART1c | Aviation Radio Technician, First Class |
| ART2c | Aviation Radio Technician, Second Class |
| ART3c | Aviation Radio Technician, Third Class |
| ARTech | Aircraft Refinishing Technician |
| ArtEngr | Artificer Engineer |
| ARTY | Artillery |
| ARTY | Artillery |
| ARTY R | Artillery reconnaissance |
| ARTY R | Artillery Reconnaissance |
| Arty Svy | Artillery Surveyor |
| Arty Tech | Artillery Technician |
| Arty. | Artillery |
| ArtyLoc | Artillery Locator |
| Artymn | Artilleryman |
| ARU | Aircraft Repair Unit |
| ARU | Artillery Reinforcement Unit |
| ARU | Aircraft Repair Unit |
| ARV | Armoured Recovery Vehicle |
| ARV | Armoured Recovery Vehicle |
| ARWF/S | Advanced Rotary Wing Flight/Squadron |
| AS | Air School |
| AS | Apprentice Seaman Know naval drill duties, tie knots. Stand watch. |
| AS | Apprentice Seaman |
| AS | Air Radio Mechanic (Air Wireless) |
| AS | Air Secretary |
| AS | Air Staff |
| AS | Anti-Submarine or Air School |
| AS and ACSU | Assistant and Acting Surgeon |
| AS of S(3) | Assistant-Director of Signals (Ground Communications) |
| AS&DB | Army Salvage & Disposal Board |
| AS&RU | Aircraft Salvage & Repair Unit |
| ASA | Ammunition Small arms |
| ASADJand2L | Assistant Adjutant and Second Lieutenant |
| ASAP | As Soon As Possible |
| ASC | Aircrew Selection Centre; or Air Support Command; or Area Support Group; or Army Service Corps |
| ASC | Advanced Surgical Centre |
| ASC | Army Service Corps |
| ASC | Aerospace System Engineering Projects Officer |
| ASC | Army Service Corps |
| ASCA | Auxiliary Services Canadian Army |
| ASCL | Assistant Clerk |
| ASCO | Assistant Commodore |
| ASCRCE | Area Signal Company, Royal Canadian Engineers |
| ASD | Aeroplane Supply Depot |
| ASD | Ammunition sub-depot |
| ASD | Army Schools Department |
| ASD | Ammunition Sub-Depot |
| ASE | Army Survey Establishment |
| ASF | Aircraft Servicing Flight |
| ASF | Air Survey Flight |
| ASF | Active Service Force |
| ASGT | Acting Sergeant |
| ASI | Air Speed Indicator |
| ASI | Air speed indicator |
| ASIN | Assistant Engineer |
| ASJT | Acting Sergeant |
| ASL | Admiral Superintendent, Alexandria |
| ASLAD | Army Signals Light Aid Detachment |
| ASLT | Assault |
| ASLT | Assault |
| ASLT | Assault |
| Aslt. | Assault |
| Aslt. Bde. Ord. Fd. Pk. | Assault Brigade Ordnance Field Park (Aslt Bde Ord Fd Pk) |
| ASM | Anti Submarine Missile |
| ASNU | Assistant Nurse |
| ASO | Assistant Supply Officer |
| ASO | Armament Supply Officer |
| ASO | Area Security Officer |
| ASO | Assitant Section Officer |
| ASO(I) | Assistant Staff Officer (Intelligence) |
| ASP | Air Stores Park |
| ASP | Air Stores Park (406) (Royal Canadian Air Force) |
| ASP | Admiralty Salvage Pontoon |
| ASP | Air Stores Park or Apshalt |
| ASPU | Assistant Purveyor |
| ASR | Air Sea Rescue |
| ASR | Submarine Rescue Vessel, Auxiliary (US) |
| ASR | Air Sea Rescue |
| ASR&CF | Air Sear Rescue & Communication Flight |
| ASRF | Air Sea Rescue Flight |
| ASRTU | Air Sea Rescue Training Unit |
| ASS | Air Signals School |
| ASS | Army Staff Section |
| Ass't | Assistant |
| Assam Rif | The Assam Rifle Regiment |
| ASSAM. RIF | Assam Rifles |
| ASSAMVLH | Assam Valley Light Horse |
| Asst | Assistant |
| AsstNSec | Assistant Naval Secretary |
| AsstPayr | Assistant Paymaster |
| ASSU | Air Support Signal Unit |
| ASSU | Assistant Superintendent |
| ASSU | Air Support Signal Unit |
| AST | Air Service Training (CRO) |
| ASTO | Assistant Transport Officer |
| ASTOR | Airborne Stand-Off Radar |
| ASU | Area Support Unit; or Aircraft Storage Unit |
| ASU | Air Supply Unit |
| ASU | Assistant Surgeon |
| ASU | Aircraft Storage Units |
| ASUW | Anti-Surface Warfare |
| ASV | Airborne Surface Vessel, radar for maritime patrol aircraft |
| ASV | Anti-Surface Vessel |
| ASvyCoy | Air Survey Company |
| ASW | Anti-Submarine Warfare |
| ASW | Anti-Submarine Warfare |
| ASWDU | Air-Sea Warfare Development Unit |
| AT | Animal transport |
| AT | Antitank |
| AT | Air Artificer (Airframes and Engines) |
| AT | Auxiliary Tanker |
| AT | Ocean-going Tug, Auxiliary (US) |
| AT | Aviation Technician |
| AT | Armoured Train |
| AT | Army Troop or Anti Tank or Animal Transport |
| ATA | Air Transport Auxiliary |
| ATA | Air Transport Auxiliary (British) |
| ATA | Air Transport Auxiliary |
| ATAF | Allied Tactical Air Force |
| ATAM | Air-To-Air Missile |
| ATB | Allied Torpedo Boats |
| ATB(OR) | Army Tank Battalion (Ontario Regiment) |
| ATBHSSRCOC | Army Tank Brigade, Heavy Support Squadron, Royal Canadian Ordnance Corps |
| ATBOFPRCOC | Army Tank Brigade, Ordnance Field Park, Royal Canadian Ordnance Corps |
| ATC | Australian Tank Corps |
| ATC | Air Training Corps |
| ATC | Air Traffic Control |
| ATC | Armament Training Camp/Air Training Corps (succeeded ADCC, 1941) |
| ATC | Advance Training Centre |
| ATC | Airport Traffic Control (US) |
| ATC | Air Traffic Control |
| ATC | Air Traffic Control or Air Training Corps |
| ATCDE | Awarded the Canadian Efficiency Decoration |
| ATCoy | Army Troops Company |
| ATCR | Advanced Training Centre Reserve |
| ATCRCE | Army Troops Company, Royal Canadian Engineers |
| ATDC(I) | Air Transport Development Centre (India) |
| ATDF | Air Transport Development Flight |
| ATDU | Air Torpedo Development Unit? Air Transport Development Unit |
| ATF | Autogiro Training Flight |
| ATFERO | Atlantic Ferry Organization |
| ATG | Antitank Gun |
| ATGU | Aircrew Testing & Grading Unit |
| ATGW | Army Tank Guided Weapon |
| ATI | Army Training Instruction |
| ATI | Access to Information Act |
| ATK | Anti-tank |
| Atl | Atlantic |
| ATM | Army Training Memorandum |
| AtmstSTech | Armament Systems Technician |
| ATO | Air Treasury Office |
| ATO | Aircraft Torpedo Office |
| ATO | Ammunition Technical Officer |
| ATOC | Army tactical Operations Course |
| ATOF | Army Training and Operations Framework |
| ATP | Advanced Training Poll; or Aircrew Transit Pool; or Air Transit Pool |
| ATP | Annual Training Pay |
| ATPS | Army Troops |
| ATps | Army Troops Company |
| ATps | Army Troops |
| ATR | Antitank Rifle |
| ATR | Rescue Tug, Auxiliary (US) |
| ATR | Anti Tank Rifle |
| ATR(1H) | Army Tank Regiment (1st Hussars) |
| ATRE | Army Troops Royal Engineers |
| ATREL | Air Transportable Reconnaissance Exploitation Laboratory |
| ATRRCACASF | Anti-Tank Regiment, Royal Canadian Artillery, Canadian Active Service Force |
| ATS | Auxiliary Territorial Service (women); or Armament Training Station; or Air Training Squadron |
| ATS | Army Trades School |
| ATS | Auxiliary Territorial Service or Air Training Squadron |
| ATSU | Air Transportable Signal Unit |
| ATT | Attach, attached or attachment |
| Att | Attached - to be made part of a specific unit on a temporary basis |
| ATT | Attached or Attachment |
| att | Attached |
| Att'd | Attached - to be made part of a specific unit on a temporary basis |
| ATTA | Full duties and return for treatment |
| Attach | Attached - to be made part of a specific unit on a temporary basis |
| Attachd | Attached - to be made part of a specific unit on a temporary basis |
| ATTB | Advance Tactical Training Base |
| ATTB | Light Duties - Excused Physical Training Drill and Commanding Officer's Parades |
| ATTC | Excused all duties - Confined to barracks or home |
| ATTC-48 | Excused all duties for 48 hours |
| ATTD | Attached |
| ATTDU | Air Transport Tactical Development Unit; or Armament Training Unit; or Aircrew Transit Unit; or Air Trials Unit |
| AttP | Attached Personnel |
| ATTU | Air Target Towing Unit |
| ATU | Armament Training Unit; or Aircrew Transit Unit; or Air Trials Unit; or Advanced Training Unit |
| ATX | Admiralty Trunk Exchange |
| AU | Amplifier Unit |
| AUAS | Aberdeen University Air Squadron |
| AUBDS | Anti U-Boat Devices School |
| AUCWAC | Administrative Unit Canadian Women's Army Corps |
| AudGeneral | Auditor General (National Defence Staff) |
| AUIT | Armoured Unit Initial Training |
| Aus | Australian |
| AUS | Army of the United States |
| AUS | Assistant Under-Secretary of State |
| AUST | Australia or Australian |
| Auth | Authorized - designation of the individual or organization permitting the action noted |
| Auth | Authority - designation of the individual or organization permitting the action noted |
| AUTH | Authorised |
| Auto | Automobile |
| Auto | Automatic |
| AUX | Auxiliary or auxiliaries |
| Aux | Auxiliary |
| Aux | Division of Auxiliary Services |
| Aux Serv | Canadian Auxiliary Services |
| Aux. | Auxiliary |
| Aux(A) | Senior Auxiliary Services Officer (Air) |
| Aux(N) | Senior Auxiliary Services Officer (Naval) |
| AuxA/AS | Auxiliary Anti-Aircraft Ships |
| AuxMS | Auxiliary Minesweepers |
| AuxServ | Canadian Auxiliary Services |
| AUXY | Auxiliary |
| AV (S)2 | Aviation officers of the Volunteer Reserve appointed for special service. |
| AVC | Army Veterinary Corps |
| AVC | Army Veterinary Corps |
| AVD | Seaplane Tender, Destroyer, Auxiliary (US) |
| AVF | All-Volunteer Force |
| AVF | All Volunteer Force |
| AVG | American Volunteer Group |
| AVGO | Auxiliary Vessels Gunnery Officer |
| AVGP | Armoured Vehicle General Purpose (Grizzly, Cougar and Bison) |
| AVLB | Armoured Vehicle Launched Bridge |
| AVM | Air Vice Marshal |
| AVM | Air Vice-Marshal |
| AVM | Air Vice Marshal |
| AVN | Aviation |
| AvnTech | Aviation Technician |
| AVP | Seaplane Tender (small) Auxiliary (US) |
| AVR | Aircraft Rescue Vessel (US) |
| AVRA | Armoured Vehicle Royal Artillery |
| AVRE | Assault vehicle, Royal Engineers |
| AVRE | Armoured Vehicle, Royal Engineers |
| AVRES | Armoured Vehicles Royal Engineers |
| AVS | Army Veterinary Service |
| AvsTech | Avionics Technician |
| AW | Armstrong Whitworth |
| AW | Administrative Writer |
| AW1 | Aircraftwoman 1st Class |
| AW2 | Aircraftwoman 2nd Class |
| AWACS | Airborne Warning And Control Systems |
| AWAS | Air Warfare Analysis Section |
| AWC | Air War College |
| AWC | Air Weapons Control |
| AWCoy | Artizan Works Company |
| AWD | Advanced workshop detachment |
| Awd'd | Awarded |
| AWDS | All Weather Development Squadron |
| AWF | Air Wireless Fitter; or Air Warfare Centre; or All Weather Flight |
| AWF | Army War College Fellowship (U.S.) |
| AWFCS | All Weather Fighter Conversion Squadron |
| AWL | Absent Without Leave |
| AWL | Absent With Leave |
| AWL | Absent Without Leave |
| AWOCU | All Weather Operational Conversion Unit |
| AWOL | Absent Without Leave |
| AWOL | Absent Without Leave - away from a unit without permission; an offence under military law |
| AWOL | Absent Without Leave |
| AWRE | Atomic Weapons Research Establishment |
| AWRE | Atomic Weapons Research Establishment |
| AWS | Army War College Fellowship (U.S.) |
| AWSqn | All-weather Squadron |
| AWWC | Advanced Winter Warfare Course |
| AXP | Ambulance Exchange Point |
| AY | The Ayrshire Yeomanry Regiment (Earl of Carrick's Own) |
| AYR YEO | Ayrshire Yeomanry |
| AYRS. | Ayrshire |
| AyrYeo | Ayrshire Yeomanry |
| B | Bomber |
| B | Boilermaker Fit pipes, make repairs in boilers. Know construction of marine boilers and fireroom safety precautions. |
| B & GFU | Bombing and Gunnery Flying Unit |
| B & GS | Bombing and Gunnery School |
| B Div | Boilers |
| B of the MG of the ONDHQ | Branch of the Master General of the Ordnance, National Defence Headquarters |
| B Report | Burial Report |
| B SUP AIRFD | Base supply airfield |
| B WKSP | Base workshop |
| B.(D)T.F. | Bomber (Defence) Training Flight |
| B.A.D. | Base Ammunition Depot (BAD) |
| B.A.O.R. | British Army of the Rhine |
| B.B.C. | British Broadcasting Corporation |
| B.C. | British Columbia (Canada) |
| B.D. Vet. | Base Depot Veterinary |
| B.G.S. | Brigadier, General Staff |
| B.O. | Base Ordnance (BO) |
| B.O.D. | Base Ordnance Depot (BOD) |
| B.S.D. | Base Supply Depot (BSD) |
| B/L | Bridgelayer |
| B/WEO | Base or Wing Education Officer |
| B/WPSO | Base or Wing Personnel Selection Officer |
| B&C | Barrack & Clothing |
| B&GF | Bombing & Gunnery Flight |
| B&GS | Bombing & Gunnery School |
| B&W | Buildings & Works |
| B1c | Boilermaker, First Class |
| B2c | Boilermaker, Second Class |
| BA | Bandsman |
| BA | Bermuda Area |
| BABS | Blind (Beam?) Approach Beacon System BAC British Air Commission |
| BAC | British Air Commission |
| BAC | Brigade Ammunition Column |
| BAC | Brigade Ammunition Column |
| BACB | British Air Command Berlin |
| BACF | Beam Approach Calibration Flight |
| BAD | Base ammunition depot |
| BAD | British Admiralty Delegation |
| BAD | Base Ammunition Depot |
| BADR(PC) | British Admiralty Delegation Representative, Pacific Coast |
| BADU | Blind later, Beam Approach Development Unit |
| BAE | British Aerospace |
| BAF | Burma Armed Forces |
| BAFF | British Air Forces in France |
| BAFF | British Air Forces in France |
| BAFO | British Air Forces of Occupation |
| BAFO | British Air Force Overseas |
| BAFSEA | British Air Force South-East Asia |
| BAFSEA | British Air Force South East Asia |
| BAGS | Bombing and Air Gunnery School |
| BAKS | Barracks (US) |
| BALCAP | Ballistic Cap |
| Baluch (Bal) | The Baluch Regiment |
| BAM | Base Arms Maintanance |
| BAM | Large Minesweeper |
| BAMR | British Admiralty Maintenance Representative |
| BAMS | Broadcasts to Allied Merchant Ships |
| Bandsmn | Bandsman |
| Bandsmn(Prob) | Bandsman (Probationer) |
| BANFF. | Banffshire |
| BANS | Basic Air Navigation School |
| BANU | British Army News Unit |
| BAO | Base Accounting Officer |
| BAO | Base Accountant Officer |
| BAOR | British Army of the Rhine |
| BAOR | British Army of the Rhine |
| BAR | Browning Automatic Rifle or British Army of the Rhine |
| BARM | British Advisory Repair Mission |
| BARS | Salvage Vessel |
| BART | Baronet |
| BarTdr | Bar Tender |
| BARU | British Airways Repair Unit; or Base Aircraft Repair Unit |
| BAS | Beam Approach School |
| BAS | Beach Approach System |
| BAS(O) | British Army Staff (Officers) |
| BAS(OR) | British Army Staff (Other Ranks) |
| BAS&HEDS | Bomber Airborne Support & Heavy Equipment Dropping Squadron |
| BASFUZ | Base Fuze |
| BASM | Battalion Sergeant Major |
| BASR | British Admiralty Supply and Repairs |
| BASR | British Admiralty Supply Representative |
| BAT | Blind Approach Training (up to late 42) |
| BAT | Beam (originally Blind) Approach |
| BAT | Beam Approach Training |
| BATDU | Blind Approach Training & Development Unit |
| BATF | Beam (originally Blind) Approach Training Flight |
| BATM | British Admiralty Technical Mission |
| Batt | Battalion - unit of approximately 1,000 men commanded by a lieutenant-colonel |
| Batt | Battery |
| Batt'n | Battalion - unit of approximately 1,000 men commanded by a lieutenant-colonel |
| BATTS | Beam Approach Technical Training School |
| BATUS | British Army Training Unit, Suffield |
| BATY | Battery |
| BAV | Boom Attendant Vessels |
| Bays | The Queen's Bays Regiment (2nd Dragoon Guards) |
| BAYS | Queen's Bays (2nd Dragoon Guards) |
| BAYS | The Queen's Bays (2nd Dragoon Guards) |
| BB | Two Letter Designator for a Battleship. |
| BB | Battleship (US) |
| BB | Bugle Band |
| BB | Bailey Bridge |
| BB&BLEAU | Bomb Ballistics & Blind Landing Experimental Unit |
| BBC | British Broadcasting Corporation (U.K.) |
| BBCS | Bengal/Burma Communication Squadron |
| BBOC | Brought Back on Charge |
| BBP | Bulk breaking point |
| BBU | Bomb Ballistics Unit |
| BC | Battle Captain (Ops Officer); or Battery Commander (Artillery); Bomber Command; or Basic Component |
| BC | British Columbia |
| BC | Battery Commander |
| BC | Battery Commander Bomber Command or Battle Captain or Battle Cruiser or Battery Captain |
| BCA | Battery Commander Assistant |
| BCA | Biscay and Channel Area |
| BCAIR | British Commonwealth Air Component, Japan BCAS Bomber Command Armament School |
| BCATP | British Commonwealth Air Training Plan |
| BCBS | Bomber Command Bombing School |
| BCCF(S) | Bomber Command Communication Flight (Squadron) |
| BCD | The British Columbia Dragoons Regiment |
| BCD | British Columbia Dragoons |
| BCD | Base Canteen Depot |
| BCDU | Bomber Command Development Unit |
| BCFFU | Bomber Command Film Flight Unit |
| BCH | Barriefield Camp Hospital |
| BCHU | Bomber Command Holding Unit |
| BCIR&EF | Bomber Command Instrument Rating & Examining Flight |
| BCIS | Bomber Command Instructors School |
| BCJCF | Bomber Command Jet Conversion Unit |
| BCMC | Bomber Command Modification Centre |
| BCOF | British Commonwealth Occupation Force |
| BCOL | Base Coordinator of Official Languages |
| Bcook | Boy Cook |
| BCPO | Base Civilian Personnel Officer |
| BCQ | Base Commander, Queensborough |
| BCR | The British Columbia Regiment |
| BCR | British Columbia Regiment |
| BCRCASC | Bridge Company, Royal Canadian Army Service Corps |
| BCRD | British Columbia Regimental Depot |
| BCRD | British Columbia Regimental Depot - facility in England used to assemble men and to store and administer equipment and materials |
| BCRM | British-Canadian Recruiting Mission |
| BCRS | Bomber Command Radar School |
| BCSO | British Central Scientific Office |
| BCTAE | British Commonwealth Trans Antarctic Expedition |
| BD | Base Defence |
| BD | Base depot or bomb disposal |
| BD | Base Depot |
| BD | Blood Donor |
| BD | Bandsman |
| BD | Base Depot or Bomb Disposal or Battledress |
| BD-SE | Band Sergeant |
| BDB | Branch Detention Barracks |
| BDC | Battle Drill Course |
| BDCASS | "Bandoliers" Detachment - Canadian Auxiliary Services Section |
| BDCRE | Bomb Disposal Company Royal Engineers |
| BDD | Boom Defence Depot |
| BDE | Brigade |
| Bde | Bombardier |
| Bde | Brigade - unit of approximately 4,000 men commanded by a brigadier-general |
| BDE | Balloon Development Establishment |
| BDE | Convoy Escort Vessel |
| BDE | Brigade |
| BDE IO | Brigade Intelligence Officer |
| BDE SIGS | Brigade Signal Officer |
| BDE TO | Brigade Transport Officer |
| Bde. | Brigade |
| BdeGp | Brigade Group |
| Bdm | Bandsman |
| BDO | Boom Defence Officer |
| BDofMS | Base Depot of Medical Stores |
| BDR | Bombardier (Cpl in the Artillery) |
| BDR | Battle Damage Repair |
| Bdr | Bombardier (Cpl in the Artillery) |
| BDR | Bombardier |
| bdr | Bandolier |
| BDS | Bomb Disposal School |
| BDS | Battle Drill School |
| BDS | Bomb Disposal Section |
| Bdsm | Bandsman |
| BDSM | Bandsman |
| BDT | Bomber Defence Training |
| BDTC | Battle Drill Training Centre |
| BDTF | Bomber Defence Training Flight |
| BDU | Battle-Dress Uniform; or Bomb Dummy Units; or Bombing Development Unit; or Bomber Development Unit; or Balloon Development Unit; or Bomb Disposal Unit |
| BDV | Boom Defence Vessel |
| BDY | Boundary |
| BDY | Boundary |
| BDZ | Commander in Chief Netherlands Navy, London |
| BE | Base ejection |
| BEC | Basic Electronics Course |
| BEC | British Escort Craft |
| BED HERTS | Bedfordshire and Hertfordshire Regiment |
| BEDF R | Bedfordshire Regiment |
| BedfR | Bedfordshire Regiment |
| BEDFS HERTS | The Bedfordshire and Hertfordshire Regiment |
| Bedfs Herts (BedH) | The Bedfordshire and Hertfordshire Regiment |
| BedfYeo | Bedfordshire Yeomanry |
| BEDS. | Bedfordshire |
| BEF | British Expeditionary Force |
| BEF | British Expeditionary Force - army of more than 3,000,000 men established by the Government of Britain for service overseas |
| BEF | British Expeditionary Force |
| BEM | British Empire Medal |
| BEM | Basic Electronics Mechanic |
| BEM | British Empire Medal |
| BEM | British Empire Medal |
| BER | Beyond Economical Repair |
| BERKS. | Berkshire |
| BerksR | Berkshire Regiment |
| BerksYeo | Berkshire Yeomanry |
| BESA | British Engineering Standards Association |
| BET | Basic Educational Test |
| BETFOR | British Element Trieste Force |
| BF | Bring Forward (placed on a document with date the Clerk is to bring it back from the files) |
| BF | Bring Forward |
| BF | Bring Forward |
| BFA | Blank Firing Attachment |
| BFA | Battle First Aid |
| BFAP | British Forces Aden Protectorate |
| BFBS | British Forces Broadcasting Service |
| BFF | The Burma Frontier Rifles Regiment |
| BFG | British Forces Germany |
| BFG | British Forces in Germany |
| BFH | British Field Hospital |
| BFPO | British Forces Post Office |
| BFPO | British Forces Post Overseas |
| BFPO | Branch Field Post Office |
| BFT | Battle Fitness Test |
| BFTS | British Flying Training School |
| BFTS | British Flying Training Schools |
| BG | Battle Group |
| BG | Base Gagetown (Theatres of Service) |
| BG | Brigadier-General |
| BG | Brigade Group |
| BG | Battle Group |
| BG | Brigadier General or Battle Group or Box-girder (bridge) |
| BGC(C)RCASC | Brigade Group Company (Company) Royal Canadian Army Service Corps |
| BGEN | Brigadier General |
| BGGS | Brigadier General of General Staff |
| BGH | British General Hospital |
| BGH | British General Hospital |
| BGHQ | Battle Group Headquarters |
| Bglr | Bugler |
| BGLR | Bugler |
| Bgmstr | Buglemaster Know all bugle and drum calls and honors rendered. Lead and instruct a corps. |
| Bgmstr1c | Buglemaster, First Class |
| Bgmstr2c | Buglemaster, Second Class |
| BGRAM | Basegram |
| BGS | Brigadier General Staff |
| BGS | Brigadier, General Staff |
| BGS | Bombing and Gunnery Schools |
| BGS | Bombing and Gunnery School or Brigadier General Staff |
| BGT | Basic Gliding Training (Air Cadets) |
| BH&MDATKRRCA | Beachy Head & Michel Dean Anti-Tank Ranges Royal Canadian Artillery |
| BHFU | BloodHound Firing Unit |
| bhp | Brake Horse Power |
| BHP | Brake horsepower |
| BHQ | Brigade Headquarters |
| BHQS | Barriefield Headquarters Staff |
| BHRRCA | Beachy Head Ranges, Royal Canadian Artillery |
| BHSU | BloodHound Support Unit |
| BHX | Bermuda Portion of Halifax (New York) to United Kingdom Convoy |
| BI | Bandsman Instrumentalist |
| BIB | "B" Infantry Battalion |
| BIB | Baby Incendiary Bomb |
| BIC | Bowmanville Interment Camp |
| BIO | Brigade Intelligence Officer |
| BioTech | Biosciences Technician |
| BIQ | Basic Infantry Qualification |
| BIQ | Basic Infantry Qualification |
| BItoCSGHQEAGP | (Brussels) Increment to Canadian Section General Headquarters Echelon Army Group |
| BJCB | British Joint Communications Board |
| BK | Battery Captain |
| BK | Blacksmith |
| Bkr | Baker Operate ovens. Do any kind of baking. |
| BKR | Baker |
| Bkr1c | Baker, First Class |
| Bkr2c | Baker, Second Class |
| Bkr3c | Baker, Third Class |
| Bks | Barracks |
| BKY | Bakery or Bakeries |
| Bky. | Bakery |
| BL | Breech Loading |
| BL | Breech Loading |
| BLA | British Liberation Army |
| Black Watch (BW) | The Black Watch (Royal Highland Regiment) |
| bldg(s) | Building(s) |
| Bldmth | Blacksmith |
| BLEU | Blind Landing Experimental Unit |
| BLK | Blacksmith |
| BLOC | Basic Logistics Officers Course |
| BLP | Bombing Landplane (US) |
| BLS | Bombing Leaders School |
| BM | Boatswain's Mate Work with canvas and hoisting with block and tackle. Handle rope, wire, and anchor chain. Handle power and sail boats. Steer ship and chart courses. Direct salvage. |
| BM | Band Master |
| BM | Brevet Major |
| BM | Brigade Major |
| BM | Brigade Major or Bomb or Bachmastter |
| BM1c | Boatswain's Mate, First Class |
| BM2c | Boatswain's Mate, 2d Class |
| BMA | Beach maintenance area |
| BMA | Boatswain's Mate A Same duties as Boatswain's Mate and in addition, Master-at-arms. |
| BMA | Band Master |
| BMCA | British Maintenance Commander, Argentina |
| BMD | Bengal Medical Department |
| BMET | Bio-Medical Engineering Technician |
| BMH | British Military Hospital |
| BMH | Brandon Military Hospital |
| BMH | Brantford Military Hospital |
| BMH | British Military Hospital |
| BMH(PHI) | Brockville Military Hospital (PHI) |
| BMHRCAMC | Botwood Military Hospital, Royal Canadian Army Medical Corps |
| BMHRCAMC | Bowmanville Military Hospital, Royal Canadian Army Medical Corps |
| BMHRCAMC | Brampton Military Hospital, Royal Canadian Army Medical Corps |
| BMM | British Military Mission |
| BMM | British Military Mission |
| Bmn | Bandsman |
| BMQ | Basic Military Qualification |
| Bmr | Bandmaster |
| Bmr | Beachmaster |
| BMRA | Brigade Major RA |
| BMRA | Brigade Major Royal Artillery |
| BMS | Brigade Medical Station |
| BMSM | British Merchant Shipping Mission |
| Bmstr | Bandmaster |
| BMT | Basic Military Training (Past term for BMQ and QL2) |
| BMV | Boom Maintenance Vessels |
| BMWT | British Ministry of War Transport |
| BMWTR | British Ministry of War Transport Representative |
| BN | Battalion |
| BN | Boatswain |
| BN | Battalion |
| BN & PSH RCAMC | Basingstoke Neurological & Plastic Surgery Hospital, Royal Canadian Army Medical Corps |
| BNA | British Naval Attache |
| BNAF | British North Africa Force |
| Bndsmn | Bandsman |
| Bndy | Boundary |
| BNH | Basingstoke Neurological Hospital |
| BNLO | British Naval Liaison Officer |
| BNLO | British Naval Liaison Officer to French Naval Headquarters, London |
| BNLO(RHN) | British Naval Liaison Officer (Royal Hellenic Navy) |
| BO | Bombardier |
| BOAR | British Army of the Rhine |
| BOB | Battle of Britain or Battle of the Bulge |
| BOBMF | Battle of Britain Memorial Flight |
| BOC | Base Officer, Chasseurs |
| BOD | Base ordnance depot |
| BOD | Board of Directors |
| BOD | Base Ordnance Depot |
| BOD | Base Ordnance Depot |
| BOH | British Official History |
| BOHICA | Bend Over Here It Comes Again |
| BOI | Boiler (US) |
| Bom | The Bombay Grenadiers Regiment |
| Bomb | Bombardier |
| BOMB | Bombardier |
| BOMREP | Bombing report |
| BOP | Battery Ordnance Depot |
| BOQ | Bachelor Officers' Quarters |
| BOR | Battalion Orderly Room |
| BOR | British Other Rank or Battalion Orderly Room |
| BORDER | Border Regiment |
| BORDER | The Border Regiment |
| Border (Bord) | The Border Regiment |
| BordR | Border Regiment |
| BOS | Battalion Orderly Sergeant |
| BOS | Battalion Orderly Sergeant |
| Bosn | Boatswain |
| BOTC | Basic Officer Training Course |
| BOTC | Basic Officers Training Course |
| Botha | The Regiment Botha |
| BOTP | Basic Officer Training Program |
| BOW | Base Ordnance Workshop |
| BOWO | Brigade Ordnance Warrant Officer |
| BOWO | Brigade Ordnance Warrant Officer |
| Boy1 | Boy 1st Class |
| BoySig | Boy Signaller |
| BPA | Bureau of Pensions Advocates |
| BPC | Beach Protection Craft |
| BPC | Base Planning Committee |
| BPC | British Purchasing Commission |
| BPET | Battle Physical Efficiency Test |
| BPO | Base Post Office |
| BPOCPC | Base Post Office Canadian Postal Corps |
| BPSO | Base Personnel Selection Office |
| BPSO | Base Personnel Staff Officer |
| BPT | Battle Practice Target |
| BPT | Vosper Motor Torpedo Boat |
| BPV | Beach Protection Vessel |
| BQMS | Battery Quartermaster Sergeant |
| BQMS | Battery Quartermaster-Sergeant |
| BQMS | Battery Quarter-Master Sergeant |
| BR | Bridge or bridging |
| BR | The Burma Rifles Regiment |
| BR | Bomber Reconnaissance |
| Br | Bomber |
| BR | Brockville Rifles |
| BR | Bombing and Reconnaissance Squadron |
| BR | Book of Reference |
| BR | Bridge or Bridging |
| BR HD | Bridgehead |
| BR WIR | British West Indies Regiment |
| BR. CWO | CWO Branch Chief Warrant Officer |
| br(s) | Bridge(s) or bridging |
| BRA | Brigadier Royal Artillery |
| BRA | Brigadier Royal Artillery |
| BRAC | Brigadier Royal Artillery (Canada) |
| BRC | Base Reinforcement Camp |
| BRCA | Battery Royal Canadian Artillery |
| BRCE | Battalion Royal Canadian Artillery |
| BRCHA | Battery Royal Canadian Horse Artillery |
| BrColRgt | British Columbia Regiment |
| BRCS | British Red Cross Society |
| BRCS | British Red Cross Society |
| BRCS & OStJJ | British Red Cross Society and Order of St. John of Jerusalem |
| BRD | Base Repair Depot |
| BREC. | Brecknockshire |
| BRECKNOCK | Brecknockshire Battalion, South Wales Borderers (TA) |
| Brecknock (Bcn) | The Brecknock Battalion |
| Bren | light machine gun (also called the Bren Gun) |
| BRG | Bearing (US) |
| Brig | Brigade (also seen for Brigadier) |
| Brig | Brigadier |
| BRIG | Brigadier |
| BRIG GEN | Brigadier General |
| Brig-Gen | Brigadier-General |
| Brig. | Brigadier |
| BRIT | British |
| Brit | British |
| Brit. | British |
| Brit. or Br. | British |
| BRK | Brickco |
| BRLO | British Routing Liaison Officer |
| BRM | Basic Rifle Markmanship |
| BRO | British Routing Officer |
| Brock R | Brockville Rifles |
| Brock Rif | The Brockville Rifles Regiment |
| BRP RCOC | Boot Rebuilding Plant, Royal Canadian Ordnance Corps |
| BRSC | British Rear Support Command |
| BRSqn | Bomber Reconnaissance Squadron, Royal Canadian Air Force |
| BRTC | Basic Recruit Training Course |
| BS | Bomber Support |
| BS | Brigade School |
| BS | Battle Squadron |
| BS(M)RCASC | Bakery Section (Mechanical), Royal Canadian Army Service Corps |
| BSA | Barents Sea Area |
| BSA | Birmingham Small Arms Company |
| BSASSRCS | Base Sub Area Signal Section, Royal Canadian Signals |
| BSC | Base Staging Camp |
| BSD | Base supply depot |
| BSD | Brandon Supply Depot |
| BSD | Base Supply Depot (Harbour) |
| BSDU | Bomber Support Development Unit |
| Bse | Base |
| BSM | Battery Sergeant Major |
| BSM | Battery Sergeant-Major |
| BSM | Battery Sergeant Major |
| BSMA | Brigade Sergeant Major |
| BSO | (Commander in Chief) Netherlands Forces in the East |
| BSO | British Staff Officer |
| BSRCE | Boring Section, Royal Canadian Engineers |
| BSRU | Base Signal Radar Unit |
| BSS | Base Supply Ship |
| BSTU | Bomber Support Training Unit |
| BT | Bathythermograph |
| BT | Brevet or Bayonet Training |
| BTA | British Troops Austria or Bomb Thrower |
| BTC | Basic Training Centre |
| BTC(A) | Basic Training Centre (Active) |
| BTC(R) | Basic Training Centre (Reserve) |
| BTF | Burma Territorial Force |
| BTF | Bomber Towing/Training Flight |
| Btln | Battalion |
| BTN | Battalion |
| BTN | Battalion |
| BTNI | British Troops in Northern Ireland |
| Btswn | Boatswain |
| BTTN | Battalion |
| Btty | Battery - artillery unit commanded by a major and composed of four or six guns or mortars |
| BTU | Bombing Trials Unit |
| BTU | Blood Transfusion Unit or British Thermal Units |
| BTY | Battery |
| Bty | Battery - artillery unit commanded by a major and composed of four or six guns or mortars |
| BTY | Battery |
| Bty. | Battery |
| BU | Bath unit |
| BU | Broken Up |
| BU | Bugler |
| BU | Broken Up |
| BUACPATSO | British Units Affecting Canadian Personnel Army Trades School Officers |
| BUCKS | Buckinghamshire Battalion, Oxfordshire & Buckingham |
| BUCKS YEO | Buckinghamshre Yeomanry |
| BUCKS. | Buckinghamshire |
| BucksYeo | Buckinghamshire Yeomanry |
| BUCO | Build Up Control Organisation |
| BUDOCKS | Bureau of Yards and Docks (US) |
| BUFFS | The Buffs (Royal East Kent Regiment) |
| BUFFS | The Buffs (Royal East Kent Regiment) |
| Bug | Bugler Play in a bugle and drum corps. Know bugle calls and honors. |
| Bug1c | Bugler, First Class |
| Bug2c | Bugler, Second Class |
| Buk | The Buckinghamshire Battalion |
| BUMA | Bugle Major |
| BUMED | Bureau of Medicine and Surgery (US) |
| BUPERS | Bureau of Naval Personnel (US) |
| BUPTE | Bugler Private |
| BUS | Bilingual Units |
| BUSANDA | Bureau of Supplies and Accounts (US) |
| BUSE | Bugle Sergeant |
| BUSHIPS | Bureau of Ships (US) |
| BUSRA | British US Routing Agreement |
| BUSRS | British-United States Routing Agreement |
| BUSUP | Bureau of Supplies and Accounts (US) |
| Butcher | Butcher |
| BUTE | County of Bute (Buteshire) |
| BVAF | Burma Volunteer Air Force |
| BW | Black Watch (Royal Highland Regiment) |
| BW | Black Watch |
| BW | Black Watch |
| BW(RHC) | Black Watch (Royal Highlanders of Canada) |
| BWEF | British Western European Forces |
| BWF | Bristol Wireless Flight |
| BWI | British West Indies |
| BWICK. | Berwickshire |
| BWIR | British West Indies Regiment |
| BWM | British War Medal |
| BWRCEME | Base Workshop Royal Canadian Electrical and Mechanical Engineers |
| BX | Boston-Halifax Convoy |
| BX | Beeswax |
| BYHC | Buckinghamshire Cavalry Hussars |
| BYMS | British "Y" Class Minesweeper |
| BZ | (Bravo Zulu) Good job or well done |
| BZ | Bristol Division, Royal Naval Volunteer Reserve |
| BZA | Brazilian Area |
| C | Coastal |
| C | Canadian |
| C | Censor |
| C | Commissioned |
| C | Company |
| C | Cook |
| C | Corps or Coastal or Coldstream or Car |
| C & M | Care and Maintenance |
| C & R Divs | Construction and repair |
| C COMD | Chief Commander |
| C CONTR | Chief Controller |
| C Guards | Coldstream Guards |
| C of A | Chief of Artillery |
| C of AS | Corps of Army Schoolmasters |
| C of E | Church of England |
| C of G | Croix de Guerre |
| C of HRS | Corps of Hussars |
| C OF I | of I Court of Inquiry |
| C of I | Court of Inquiry |
| C of LRS | Corps of Lancers |
| C Prep | Counter-preparation |
| C SCOT R | SCOT R Canadian Scottish Regiment. A Reserve Infantry Regiment on Vancouver Island. |
| C Scot R | The Canadian Scottish Regiment (Princess Mary's) |
| C SUPS | Sups Combat Supplies |
| C TPS | Corps troops |
| C TPS | Corps Troops |
| C-IN-C | Commander-in-Chief |
| C-in-C | Commander in Chief |
| C-in-C | Commander-in-Chief |
| C-in-C (CiC) | Commander-in-Chief |
| C-in-C,CNA | Commander in Chief, Canadian Northwest Atlantic |
| C-in-CAandWI | Commander in Chief, Atlantic and West Indies Station |
| C-in-CCWA | Commander in Charge Canadian North Atlantic |
| C-in-CEF | Commander in Chief Eastern Fleet |
| C-in-CHF | Commander in Chief Home Fleet |
| C-in-CLANT | Commander in Chief, US Atlantic Fleet |
| C-V (G) | Officers of the Volunteer Reserve appointed for general communications service. |
| C-V (L) | Officers of the Volunteer Reserve appointed for for communications industrial liaison duties. |
| C-V (S)2 | Officers of the Volunteer Reserve appointed for special communications service. |
| C-V (X) | Officers of the Volunteer Reserve appointed for communications security duties. |
| C: in-C. | Commander-in-Chief |
| C. of S. | Chief of Staff |
| C. Scot. R. | The Canadian Scottish Regiment |
| C. SGT | Colour Sergeant |
| C.A.O.F. | Canadian Army Occupation Force |
| C.A.O.R.O. | Canadian Army Overseas Routine Order |
| C.B. | Companion of the Order of the Bath |
| C.B. Highrs. | The Cape Breton Highlanders |
| C.B.E. | Commander of the Order of the British Empire |
| C.C.R.A. | Commander, Corps Royal Artillery |
| C.C.S. | Combined Chiefs of Staff |
| C.D. | Canadian Forces Decoration |
| C.F.C. | Canadian Forestry Corps |
| C.F.N. | Canadian Forces in the Netherlands |
| C.H. | Companion of Honour |
| C.H. of O. | The Cameron Highlanders of Ottawa (M.G.) |
| C.I.G.S. | Chief of the Imperial General Staff |
| C.M.H.Q. | Canadian Military Headquarters (London) |
| C.O. | Chief Signal Officer |
| C.O. | Commanding Officer |
| C.O.H.Q. | Combined Operations Headquarters |
| C.O.S. | Chiefs of Staff |
| C.R.A. | Commander, Royal Artillery |
| C.R.A.O.C. | Commander Royal Army Ordnance Corps (CRAOC) |
| C.R.A.S.C. | Commander Royal Army Service Corps (CRASC) |
| C.R.E. | Command Royal Engineer (CRE) |
| C.R.E.M.E. | Commander Royal Electrical and Mechanical Engineers (CREME) |
| C.R.S. | Captured Records Section, Washington |
| C.S.M. | Company Sergeant Major (Warrant Officer, Class II) |
| C(A)D(I)HU | Canadian (Armoured) Division (Infantry) Holding Unit |
| C(A)TBOW/SRCOC | Canadian (Army) Tank Brigade Ordnance Workshop, Royal Canadian Ordnance Corps |
| C(O)on"Q"L | Canadian (Officers) on "Q" List |
| C(W/T)V | Calibration (Wireless Telegraphy) Vessel |
| C/Blkmth | Chief Blacksmith |
| C/BTC | Canadian Base Training Centre |
| C/EA | Chief Electrical Artificer |
| C/ERA | Chief Engine Room Artificer |
| C/ERA(M) | Chief Engine Room Artificer (Mechanic) |
| C/Joiner | Chief Joiner |
| C/Mech | Chief Mechanic |
| C/MM | Chief Motor Mechanic |
| C/O | Commanding Officer |
| C/Plbr | Chief Plumber |
| C/Pntr | Chief Painter |
| C/PO(Postal) | Chief Petty Officer (Postal) |
| C/POCdr | Chief Petty Officer Coder |
| C/POCk | Chief Petty Officer Cook |
| C/POPhoto | Chief Petty Officer Photographer |
| C/POPtlmn | Chief Petty Officer Patrolman |
| C/POStwd | Chief Petty Officer Steward |
| C/POTel | Chief Petty Officer Telegraphist |
| C/POWtr | Chief Petty Officer Writer |
| C/RA | Chief Radio Artificer |
| C/Shpt | Chief Shipwright |
| C/SPO | Chief Stoker Petty Officer |
| C/Sto | Chief Stoker |
| C/Sto(FF) | Chief Stoker (Fire Fighter) |
| C&A | Corrections & Amendments |
| C&AAA | Coast & Anti-Aircraft Artillery |
| C&AAATC | Coast & Anti-Aircraft Artillery Training Centre |
| C&M | Care and Maintenance |
| C&P | Counseling and Probation |
| C&P | Counselling and Probation |
| C&SM | Sheet metal & Copper Smith |
| C&TC | Commissariat and Transport Corps |
| C&YR | Carleton & York Regiment |
| C1 | Chief Petty Officer 1st Class |
| C1Div | Clearance Diver |
| C2 | Chief Petty Officer 2nd Class |
| CA | Controller, Aircraft (Air Ministry) |
| CA | Coast artillery or civil affairs |
| CA | Civil affairs or coast artillery |
| CA | Canadian Army |
| CA | Control Armourer |
| CA | Heavy Cruiser (U.S.) |
| CA | Coast Artillery or Civil Affairs |
| CA-MCURCAMC | Canadian Anti-Malaria Control Unit, Royal Canadian Army Medical Corps |
| CA"Y"F | Canadian Army British West Indies Force |
| CA(A) | Canadian Army (Active) |
| CA(A)TC | Canadian Army (Advanced) Training Centre |
| CA(AF) | Canadian Army (Active Force) |
| CA(B)TC | Canadian Army (Basic) Training Centre |
| CA(M) | Canadian Army (Militia) |
| CA(NRMA) | Canadian Army (National Resources Mobilization Act of 1940) |
| CA(PF) | Canadian Army (Permanent Force) |
| CA(R) | Canadian Army (Regular) |
| CA(Res)or(R) | Canadian Army (Reserve) |
| CA(RF) | Canadian Army (Reserve Force) |
| CA(RR) | Canadian Army (Regular Reserve) |
| CA(SF) | Canadian Army (Special Force) |
| CA/SA | Chief Anti-Submarine Artificer |
| CA/SEE | Captain, Anti-Submarine Experimental Establishment |
| CA/TKRPRCASC | Canadian Anti-Tank Regiment Platoon, Royal Canadian Army Service Corps |
| CA&AA | Coastal Artillery and Anti-Aircraft |
| CA2PS | Canadian Army 2 Pounder School |
| CAAC | Crown Assets Allocation Committee |
| CAACU | Civilian Anti-Aircraft Co-operation Unit |
| CAAF | Canadian Army Active Force |
| CAAORRCA | Canadian Anti-Aircraft Operations Room, Royal Canadian Artillery |
| CAAS | Canadian Army Administration School |
| CAB | Canadian Armoured Brigade |
| CAB | Canadian Army Band |
| CABC | Canadian Armoured Corps Band |
| CABCRCASC | Canadian Armoured Brigade Company, Royal Canadian Army Service Corps |
| CABOC | Canadian Armoured Brigade Ordnance Company |
| CABRR | Canadian Artillery Base Reinforcement Regiment |
| CABS | Canadian Armoured Brigade Signals |
| CABTCA&TS | Canadian Army Basic Training Centre Administrative and Training Staff |
| CABW/SRCEME | Canadian Advance Base Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CABW/SRCEME | Canadian Armoured Brigade Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CAC | Coast Artillery Cooperation |
| CAC | Commonwealth Aircraft Corporation; or Coast Artillery Co-operation; or Consolidated Aircraft Corporation; or Chrislea Aircraft Co. |
| CAC | Canadian Armoured Corps |
| CAC | Central Advisory Council |
| CAC(A)TC(CA) | Canadian Armoured Corps (Advanced) Training Centre (Canadian Army) |
| CACBTC | Canadian Armoured Corps Basic Training Centre |
| CACCRCASC | Canadian Army Car Company, Royal Canadian Army Service Corps |
| CACF | Coast Artillery Co-operation Flight |
| CACF | Commander Captain-in-Command, Araken Coastal Forcer |
| CACHU | Canadian Armoured Corps Holding Unit |
| CACOFP | Canadian Armoured Corps Ordnance Field Park |
| CACPRCASC | Canadian Army Catering Pool, Royal Canadian Army Service Corps |
| CACRU | Canadian Armoured Corps Reinforcement Unit |
| CACS | Central Air Command Section |
| CACSCAC | Canadian Air Control Section, Canadian Armoured Corps |
| CACSqn | Coast Artillery Co-operation Squadron, (Royal Canadian Air Force) |
| CACTC | Canadian Armoured Corps Training Centre |
| CACTC(A) | Canadian Armoured Corps Training Centre (Active) |
| CACTCR | Canadian Armoured Corps Training Centre Reserve |
| CACTE | Canadian Armoured Corps Training Establishment |
| CACTR | Canadian Armoured Corps Training Regiment |
| CACTS | Canadian Armoured Corps Training Squadron |
| CACTSR | Canadian Armoured Corps Trained Soldiers Regiment |
| CACTU | Canadian Armoured Corps Training Unit |
| CACU | Coast Artillery Co-operation Unit |
| CAD | Central Ammunition Depot |
| CAD | Central Ammunition Depot |
| CADC | Canadian Army Dental Corps |
| CADC | Canadian Army Dental Corps - corps of military dentists and other personnel providing dental services to soldiers |
| Cadets | Cadet Services (Directorate of Military Training) |
| CADIS | Canadian Armoured Division Intelligence Section |
| CADMS | Canadian Advance Depot Medical Stores |
| CADOFPRCOC | Canadian Armoured Division Ordnance Field Park, Royal Canadian Ordnance Corps |
| CADPAT | Canadian Disruptive Pattern (uniform design) |
| CADPAT | Canadian Disruptive Pattern |
| CADPUCPC | Canadian Armoured Division Postal Unit, Canadian Postal Corps |
| CADR | Canadian Armoured Delivery Regiment |
| CADR(ER)CAC | Canadian Armoured Delivery Regiment (Elgin Regiment), Canadian Armoured Corps |
| CADRCASC | Canadian Armoured Division, Royal Canadian Army Service Corps |
| CADRSSRCCS | Canadian Armoured Delivery Regiment Signal Section, Royal Canadian Corps of Signals |
| CADRTC | Canadian Armoured Division Reinforcement Transit Camp |
| CADSCDC | Canadian Army Dental Stores, Canadian Dental Corps |
| CADSGCRCASC | Canadian Armoured Divisional Support Group, Royal Canadian Army Service Corps |
| CADSP | Canadian Armoured Division Sub Park |
| CADTCRCASC | Canadian Armoured Division Transport Company, Royal Canadian Army Service Corps |
| CADTS | Canadian Armoured Division Training School |
| CADU | Canadian Army Demonstration Unit |
| CADW/SRCOC | Canadian Armoured Division Workshop, Royal Canadian Ordnance Corps |
| CAEBTC | Canadian Army Engineer Basic Training Centre |
| CAEC(B&NY) | Canadian Army Enlistment Centre (Boston and New York) |
| CAEE | Coast Artillery Experimental Establishment |
| CAerM | Chief Aerographer's Mate |
| CAERNS. | Caernarvonshire |
| CAESU | Canadian Army Equipment Selection Unit |
| CAEU | Casualty Air Evacuation Unit |
| CAF | Citizen Air Force (reserve) |
| CAFAC | Commander, Allied Force, Aruba and Curacao (U.S.) |
| CAFHSR-CAMC | Canadian Army Field Hygiene Section, Royal Canadian Army Medical Corps |
| CAFO | Confidential Admiralty Fleet Order |
| CAFRSSRCS | Canadian Army Field Regiment Signal Section, Royal Canadian Signals |
| CAFSS | Canadian Army Field Security Section |
| CAFVS | Canadian Armoured Fighting Vehicles School |
| CAFVTC | Canadian Armoured Fighting Vehicles Training Centre |
| CAG | Canadian Artillery Group |
| CAGRA | Commander Army Group RA (brigadier) |
| CAGRE | Commander, Army Group Royal Engineers |
| CAGS | Canadian Army Gymnastic Staff |
| CAHC | Canadian Army Hydrological Corps |
| CAHQDC(RMR) | Canadian Army headquarters Defence Company (Royal Montreal Regiment) |
| CAHU | Canadian Artillery Holding Unit |
| CAIB | Canadian Army Identification Bureau |
| CAIPCIC | Canadian Army Interrogation Pool, Canadian Infantry Corps |
| CAIS | Canadian Army Intelligence Section |
| CAITH. | Caithness |
| CAL | Caliber |
| CAL FLT | Flt Calibration Flight |
| CAL. | Calibration |
| CALE | Canadian Army Liaison Establishment |
| Calg Highrs | The Calgary Highlanders Regiment |
| Calg R | The Calgary Regiment |
| CalgH | Calgary Highlanders |
| CalgR | Calgary Regiment |
| Call sign MOAY | No. 31 Squadron RAF |
| Call sign MOAZ | Colerne Communication Squadron RAF |
| Call sign MOBC | No. 242 Operational Conversion Unit RAF |
| Call sign MOBM | No. 84 Squadron RAF |
| Call sign MODA | No. 24 Squadron RAF?&?No.1 Parachute and Glider Training School |
| Call sign MODB | No. 53 Squadron RAF |
| Call sign MODC | No. 24 Squadron RAF,?No. 27 Squadron RAF?&?No. 62 Squadron RAF |
| Call sign MODD | No. 238 Squadron RAF |
| Call sign MODF | No. 30 Squadron RAF?&?Airwork Ltd. |
| Call sign MODG | Queens Flight RAF |
| Call sign MODW | Silver City Airways |
| Call sign MOFA | No. 18 Squadron RAF |
| Call sign MOFB | No. 77 Squadron RAF |
| Call sign MOFC | Unknown - possibly 62Sqn |
| Call sign MOFG | No. 46 Squadron RAF?&?No. 114 Squadron RAF |
| Call sign MOGA | No. 53 Squadron RAF?&?No. 99 Squadron RAF |
| Call sign MOGB | No. 47 Squadron RAF |
| Call sign MOGC | No. 242 Operational Conversion Unit RAF |
| Call sign MOGH | No. 70 Squadron RAF |
| Call sign MOGP | No. 48 Squadron RAF |
| Call sign MOGX | Unknown - possibly an Abingdon Wing or Sqn |
| Call sign MOGZ | No. 24 Squadron RAF |
| Call sign MOHA | No. 297 Squadron RAF |
| Call sign MOHC | No. 295 Squadron RAF?&?No. 113 Squadron RAF |
| Call sign MOHD | No. 47 Squadron RAF |
| Call sign MOJA | No. 99 Squadron RAF |
| Call sign MOKD | No. 24 Squadron RAF |
| Call sign MOLG | Queens Flight RAF |
| Call sign MONY | Metropolitan Communication Squadron RAF |
| Call sign MOPT | 2nd Tactical Air Force Communication Squadron |
| Call sign MORC | No. 242 Operational Conversion Unit RAF |
| Call sign MORG | No. 30 Squadron RAF |
| Call sign MORK | Unknown |
| Call sign MORM | No. 84 Squadron RAF |
| Call sign MORT | 2nd Tactical Air Force Communication Squadron |
| Call sign MOSC | No. 30 Squadron RAF |
| Call sign MOTA | No. 216 Squadron RAF |
| Call sign MOVF | No. 622 Squadron RAF?&?Airwork Ltd. |
| Call sign MOWA | No. 40 Squadron RAF |
| Call sign MOWB | No. 59 Squadron RAF |
| Call sign MOYA | No. 51 Squadron RAF |
| Call sign MOYB | No. 59 Squadron RAF |
| Call sign MOYC | No. 511 Squadron RAF |
| Call sign MOYD | No. 24 Squadron RAF?&?No. 59 Squadron RAF |
| Call sign MOYF | No. 242 Squadron RAF |
| Call sign MOYG | No. 206 Squadron RAF |
| Call sign MOYU | Supreme Commanders Headquarters Communication Squadron RAF |
| Call sign MOYX | No. 242 Squadron RAF |
| Call sign OAA | No. 24 Squadron RAF |
| Call sign OAP | Air Dispatch Letter Squadron |
| Call sign ODA | No. 24 Squadron RAF |
| Call sign ODC | No. 238 Squadron RAF?&?No. 436 Squadron RAF |
| Call sign ODE | No. 62 Squadron RAF |
| Call sign ODF | No. 147 Squadron RAF |
| Call sign ODJ | No. 78 Squadron RAF |
| Call sign ODK | No. 512 Squadron RAF?&?No. 241 Squadron RAF |
| Call sign ODM | No. 436 Squadron RAF |
| Call sign ODN | No. 271 Squadron RAF |
| Call sign ODO | No. 437 Squadron RAF |
| Call sign ODP | No. 216 Squadron RAF |
| Call sign ODR | No. 48 Squadron RAF |
| Call sign ODS | No. 575 Squadron RAF |
| Call sign ODT | No. 53 Squadron RAF |
| Call sign ODU | No. 77 Squadron RAF?&?No. 31 Squadron RAF |
| Call sign ODV | No. 10 Squadron RAF |
| Call sign ODW | No. 52 Squadron RAF |
| Call sign ODY | No. 1333 (Transport) Conversion Unit RAF |
| Call sign ODZ | British Overseas Airways Corporation |
| Call sign OFA | No. 10 Squadron RAF?&?No. 437 Squadron RAF |
| Call sign OFB | No. 77 Squadron RAF?&?No. 271 Squadron RAF |
| Call sign OFD | No. 575 Squadron RAF |
| Call sign OFG | No. 46 Squadron RAF |
| Call sign OFN | No. 575 Squadron RAF |
| Call sign OFR | No. 238 Squadron RAF |
| Call sign OFT | No. 187 Squadron RAF |
| Call sign OFU | No. 233 Squadron RAF |
| Call sign OFV | No. 271 Squadron RAF |
| Call sign OFZ | British Overseas Airways Corporation |
| Call sign OHC | No. 1665 Heavy Conversion Unit RAF |
| Call sign OHD | No. 301 Squadron RAF |
| Call sign OHL | No. 113 Squadron RAF |
| Call sign OKD | No. 24 Squadron RAF |
| Call sign OKZ | British Overseas Airways Corporation |
| Call sign OLB | No. 246 Squadron RAF |
| Call sign OLL | No. 111 Operational Training Unit RAF |
| Call sign OLM | No. 206 Squadron RAF |
| Call sign OLN | No. 466 Squadron RAF |
| Call sign OLP | No. 426 Squadron RAF |
| Call sign OLW | No. 86 Squadron RAF |
| Call sign OLX | No. 220 Squadron RAF |
| Call sign OLZ | British Overseas Airways Corporation |
| Call sign OQZ | British Overseas Airways Corporation |
| Call sign ORJ | No. 51 Squadron RAF |
| Call sign ORK | No. 242 Squadron RAF |
| Call sign ORL | No. 46 Squadron RAF |
| Call sign ORO | No. 158 Squadron RAF |
| Call sign ORP | No. 196 Squadron RAF?&?No. 299 Squadron RAF |
| Call sign ORS | No. 299 Squadron RAF |
| Call sign ORT | No. 1588 (Heavy Freight) Flight RAF |
| Call sign OSD | No. 232 Squadron RAF |
| Call sign OSK | No. 233 Squadron RAF |
| Call sign OXG | No. 163 Squadron RAF |
| Call sign OYA | No. 511 Squadron RAF |
| Call sign OYB | No. 246 Squadron RAF |
| Call sign OYC | No. 511 Squadron RAF |
| Call sign OYD | No. 24 Squadron RAF |
| Call sign OYF | No. 242 Squadron RAF |
| Call sign OYZ | No. 1384 Conversion Unit RAF |
| CALO | Command Amenities Liaison Officer |
| CALS | Canadian Air Liaison Section |
| CAM | Camouflage or camouflaged (CAMO) |
| CAM | Catapult Aircraft Merchant Vessel |
| CAM | Camouflage |
| CAM | Canadian Army Medical Corps |
| CAM-SHIP | Catapult-Armed Merchant Ship |
| Cam. | Camouflage |
| Camb | The Cambridgeshire Regiment |
| CAMB | Central Air Medical Board |
| CAMB R | Cambridgeshire Regiment |
| CambR | Cambridgeshire Regiment |
| CAMBS | Cambridgeshire Regiment (TA) |
| CAMBS. | Cambridgeshire |
| CAMBU | Canadian Army Mobile Bath Unit |
| CAMC | Canadian Army Medical Corps |
| CAMC | Canadian Army Medical Corps - corps of military doctors, nursing sisters and other personnel providing medical treatment to soldiers |
| CAMCTC | Canadian Army Medical Corps Training Centre |
| CAMERONIANS | Cameronians (Scottish Rifles) |
| Cameronians (Cam) | The Cameronians (Scottish Rifles) Regiment |
| CAMERONS | Queen's Own Cameron Highlanders |
| CAMERONS | The Queen's Own Cameron Highlanders |
| Camerons (CamH) | The Queen's Own Cameron Highlanders Regiment |
| Camerons of C | The Queen?s Own Cameron Highlanders of Canada Regiment |
| Camerons of C. | The Queen's Own Cameron Highlanders of Canada |
| CAMMS | Canadian Army Motor Mechanic School |
| CAMN HIGHS | Cameron Highlanders |
| CamnHighs | Cameron Highlanders |
| CAMO | Camouflage Unit |
| CAMS | Catapult Aircraft Merchant Ships |
| CAMSI | Confidential Admiralty Merchant Shipping Instructions |
| Can | Canadian |
| CAN | Canteen |
| CANADA COM | COM Canada Command |
| Canavhed | Canadian Naval Headquarters |
| CanCavBde | Canadian Calvary Brigade |
| CANCOM | Canada Command |
| CanCycBn | Canadian Cyclist Battalion |
| CanCyclistBn | Canadian Cyclist Battalion |
| Cand W | Cable and Wireless Company |
| CanDCyc | Canadian Divisional Cyclists |
| CanDivCav | Canadian Divisional Calvary |
| CanDivCyc | Canadian Divisional Cyclists |
| CanDivHQ | Canadian Divisional Headquarters |
| CanDivSig | Canadian Divisional Signals |
| CanEng | Canadian Engineers |
| CANEX | Canadian Forces Exchange |
| CanFdArt | Canadian Field Artillery |
| CanForC | Canadian Forestry Corps |
| CANFORGEN | Canadian Forces General Order |
| CanFus | Canadian Fusiliers |
| CanHighComm | Canadian High Commissioner |
| CanHyBy | Canadian Heavy Battery |
| CanInfBde | Canadian Infantry Brigade |
| CanInfWksC | Canadian Infantry Works Corps |
| CanLabrBn | Canadian Labour Battalion |
| CANLANDGEN | Land Force General Message |
| CanLH | Canadian Light Horse |
| CANMIL | Canadian Military Headquarters |
| CANMILITRY | Canadian Military Headquarters |
| CanMMGBde | Canadian Machine Gun Brigade |
| CanMtdRif | Canadian Mounted Rifles |
| CanordC | Canadian Ordnance Corps |
| CanPnrBn | Canadian Pioneer Battalion |
| CanPostalC | Canadian Postal Corps |
| CanRemtD | Canadian Remount Depot |
| CanRlyConsC | Canadian Railway Construction Corps |
| CANS | Civil Air Navigation School |
| CanSanSec | Canadian Sanitary Section |
| CanScts | Canadian Scouts |
| CanSiberianExpFce | Canadian Siberian Expeditionary Force |
| CANSOFCOM | Canadian Special Operations Forces Command |
| CanTankC | Canadian Tank Corps |
| CAO | Canadian Army Order |
| CAO | Canadian Army Overseas |
| CAO | Command Account Officer |
| CAO | Chief Accountant Officer |
| CAO(s) | Canadian Army Orders |
| CAOC | Canadian Army Ordnance Corps |
| CAOF | Canadian Army Occupation Force |
| CAOFP | Canadian Army Ordnance Field Park |
| CAOPS | Canadian Air Observation Post Squadron |
| CAORG | Canadian Army Operational Research Group |
| CAORO(s) | Canadian Army Overseas Routine Order(s) |
| CAOS | Combined Air Observers School |
| CAP | Captain |
| CAP | Chief Aviation Pilot |
| Cap | Captain |
| CAP | Canadian Army Projectionist |
| CAP | Common Army Phase |
| CAP | Corps Ammunition Park Royal Canadian Army Service Corps |
| CAP | Captain |
| CAPC | Canadian Army Pay Corps |
| CAPCRCAC | Canadian Armoured Personnel Carrier Regiment, Canadian Armoured Corps |
| CAPCRSTRCS | Canadian Armoured Personnel Carrier Regiment Signal Troop, Royal Canadian Signals |
| CAPF | Canadian Army Pacific Force |
| CapINF | Capitaine Infirmiere |
| CAPIS | Canadian Air Photo Interpretation Section, Canadian Intelligence Corps |
| CAPO | Canadian Army Post Office |
| CAPPUCIC | Canadian Army Photo Processing Unit, Canadian Intelligence Corps |
| CAPRCASC | Corps Ammunition Park Royal Canadian Army Service Corps |
| CAPS | Canadian Army Pay Services |
| CAPS | Captain, Auxiliary Patrol, Scapa |
| CAPT | Captain |
| CAPT | Captain or Colonel |
| Capt | Captain |
| CAPT | Captain |
| CAPT (N) | (N) Captain (Navy) |
| Capt(D) | Captain (Destroyers) |
| CAPTI/C | Captain-in-Charge |
| CAPTMLC | Captain, Major Landing Craft |
| CAPU | Canadian Army Postal Unit |
| CAR | Canadian Airborne Regiment |
| CAR | Canadian Armoured Regiment |
| CAR | Canadian Army Representative |
| CAR | Carpenter |
| CAR(CR) | Canadian Armoured Regiment (Calgary Regiment) |
| CARADSFR | Canadian Armoured Regiment Advance Details Sherbrooke Fusiliers Regiment |
| CARBRCA | Canadian Army Radar Battery Royal Canadian Artillery |
| CARC | Canadian Army Recovery Company |
| CARCRCOC | Canadian Army Recovery Company, Royal Canadian Ordnance Corp |
| CARD | Central Aircraft Repair Depot |
| CARD | Canadian Artillery Reinforcement Depot |
| CARDE | Canadian Armament Research Development Establishment |
| CARDS. | Cardiganshire |
| CareerTrg | Career Training |
| CARFTU | Canadian Artillery Reinforcement Unit |
| CARIB | Caribbean (U.S.) |
| CARIBSEAFRON | Caribbean Sea Frontier (U.S.) |
| Carl & York | The Carleton and York Regiment |
| CARMAR. | Carmarthenshire |
| CARNBH | Canadian Armoured Regiment New Brunswick Hussars |
| CARO(s) | Canadian Army Routine Order(s) |
| Carp | Carpenter |
| Carpr | Carpenter |
| CARR | Carrier |
| CARR(GGHG) | Canadian Armoured Recce Regiment (Governor General's Horse Guards) |
| CART Cartridge | |
| CARTC | Canadian Army Rehabilitation Training Centre |
| CartDmn | Cartographic Draughtsman |
| Cartymn | Chief Artilleryman |
| CARU | Canadian Army Reinforcement Unit |
| CAS | Chief of the Air Staff; or Casualty |
| CAS | Casualty (ies) |
| CAS | Canadian Administration School |
| CAS | Canadian Army Shows |
| CAS | Canadian Army Staff |
| CAS | Canadian Artillery School |
| CAS | Chief of the Air Staff |
| CAS | Casualty or Casualties or Coastal Artillery School |
| CASC | Canadian Army Service Corps |
| CASC | Canadian Air Support Control |
| CASC | Canadian Army Service Corps - branch of the military responsible for supplying troops in the field |
| CASCIC | Censorship Advisory Section, Canadian Intelligence Corps |
| CASCRCE | Canadian Air Survey Company Royal Canadian Engineers |
| CASCRU | Canadian Army Service Corps Reinforcement Unit |
| CASDRCASC | Canadian Advance Stationary Depot, Royal Canadian Army Service Corps |
| CASEU | Canadian Auxiliary Service Entertainment Unit |
| CASEVAC | Casualty Evacuation |
| CASF | Canadian Active Service Force; or Canadian Army Special Force |
| CASF | Canadian Active Service Force |
| CASL | Coast Artillery Searchlight |
| CASofI | Canadian Army School of Instruction |
| CASofI | Coast Artillery School of Instruction |
| CASS | Canadian Auxiliary Services Section |
| CASSU | Canadian Air Support Signal Unit |
| CASSURCCS | Canadian Air Support Signal Unit, Royal Canadian Corps of Signals |
| CASTS | Combined Anti Submarine Tactical School |
| CAT | College of Air Training |
| CAT | Damage Category |
| CAT | Catering |
| CATB | Canadian Army Tank Brigade |
| CATBCRCASC | Canadian Army Tank Brigade Company, Royal Canadian Army Service Corps |
| CATBHSC | Canadian Army Tank Brigade Heavy Support Company |
| CATBn | Canadian Army Tank Battalion |
| CATBS | Canadian Army Tank Brigade Signals |
| CATBSPRCOC | Canadian Army Tank Brigade Sub Park, Royal Canadian Ordnance Corps |
| CATC | Canadian Army Training Centre |
| CATCAC | Canadian Army Troop, Canadian Armoured Corps |
| CATCCRCASC | Canadian Assault Troops Composite Company, Royal Canadian Army Service Corps |
| CATCRCASC | Canadian Administrative Transport Company, Royal Canadian Army Service Corps |
| CATCS | Central Air Traffic Control School |
| CATM | Canadian Army Training Memorandum |
| CATOFP | Canadian Army Tank Ordnance Field Park |
| CATOR | Combined Air Transport Operations Room |
| CATR | Canadian Army Tank Regiment |
| CATS | Canadian Army Tank School |
| CATS | Canadian Army Training School |
| CATW/SRCOC | Canadian Armoured Troops Workshop, Royal Canadian Ordnance Corps |
| CAU | Canadian Administration Unit |
| CAU | Civil Affairs Unit |
| CAUC | Canadian Army University Course |
| CAV | Cavalry |
| Cav | Cavalry - soldiers who fought on horseback |
| CAV | Cavalry |
| CAV ARMD | Cavalry Armoured |
| CAV BDE | Cavalry Brigade |
| Cav. | Cavalry |
| CAVC | Canadian Army Veterinary Corps |
| CAW | College of Air Ware fare |
| CAW | Canadian Army Staff, Washington |
| CAWC | Canadian Artizan Works Company, Royal Canadian Engineers |
| CB | Counter-battery or confinement to barracks |
| CB | Confinement to barracks or counter-battery |
| CB | Chief Boilermaker |
| CB | Coast Brigade |
| CB | Companion of the Order of the Bath |
| CB | Confidential Book |
| CB | Confined to Barracks |
| CB | Order of the Bath (Companion) |
| CB | Confined to Barracks or Counter Battery |
| CB | Commander of the Most Honourable Order of Bath |
| CB Highrs | The Cape Breton Highlanders Regiment |
| CBA | Canadian Broadcasting Corporation Broadcasting Station |
| CBBDB | Camp Borden Branch Detention Barracks |
| CBBOP | Counter-bombardment Battery Observation Post |
| CBC | Canadian Broadcasting Corporation |
| CBCF | Coastal Battery Cooperation Flight |
| CBCS | Coastal Battery Cooperation School |
| CBD | Canadian Base Details |
| CBD | Canadian Base Depot |
| CBD | Canadian Base Details - small units charged with maintaining and improving camp areas |
| CBDC | Canadian Base Dental Company |
| CBDCMSC | Camp Borden Detachment, Corps of Military Staff Clerks |
| CBDMSRCAMC | Canadian Base Depot Medical Stores, Royal Canadian Army Medical Corps |
| CBDRCOC | Camp Borden Details, Royal Canadian Ordnance Corps |
| CBDSCDC | Canadian Base Dental Stores, Canadian Dental Corps |
| CBE | Central Bomber Establishment |
| CBE | Commander of the Order of the British Empire |
| CBE | Order of the British Empire (Commander) |
| CBE | Commander of the Most Excellent Order of the British Empire |
| CBG | Canadian Brigade Group |
| CBgmstr | Chief Buglemaster |
| CBH(RB) | Cape Breton Highlanders (Rifle Battalion) |
| CBHQS | Camp Borden Headquarters Staff |
| CBM | Chief Boatswain's Mate |
| CBMHRCAMC | Camp Borden Military Hospital, Royal Canadian Army Medical Corps |
| CBMHRCAMC | Coteau Barracks Military Hospital, Royal Canadian Army Medical Corps |
| CBMHRCAMC | Currie Barracks Military Hospital, Royal Canadian Army Medical Corps |
| CBO | Counter-battery officer |
| CBO | Counter Bombardment Officer & Staff |
| CBOD | Canadian Base Ordnance Depot |
| CBOI(ACSRRCA) | Canadian Base Ordnance Increment (Attached Canadian Survey Regiment, Royal Canadian Artillery) |
| CBOSRCA | Counter Battery Officers Staff, Royal Canadian Artillery |
| CBOSRCACC | Counter Battery Officers Staff, Royal Canadian Artillery, Canadian Corps |
| CBOStaff | Counter Battery Officers Staff |
| CBOW/SRCOC | Canadian Base Ordnance Workshop, Royal Canadian Ordnance Corps |
| CBP | Canadian Base Park |
| CBPRCE | Canadian Base Park, Royal Canadian Engineers |
| CBRCA | Centaur Battery, Royal Canadian Artillery |
| CBRCA | Coast Battery, Royal Canadian Artillery |
| CBRD | Canadian Base Reinforcement Depot |
| CBRG | Canadian Base Reinforcement Group |
| CBRGSofCRCACS | Canadian Base Reinforcement Group School of Cookery, Royal Canadian Army Service Corps |
| CBRN | Chemical, Biological, Radiological and Nuclear |
| CBSC | Canadian Base Staging Camp |
| CBSO | Counter Battery Staff Officer |
| CBSRCASC | Canadian Barracks Services, Royal Canadian Army Service Corps |
| CBSS(CMF) | Canadian Base Signal Section (Central Mediterranean Force) |
| CBSSRCCS | Camp Borden Signal Section, Royal Canadian Corps of Signals |
| CBT TM | Tm Combat Team |
| CBTC | Canadian Base Transport Company |
| CBTD | Canadian Base Transit Depot |
| CBTPRCASC | Canadian Base Transport Platoon, Royal Canadian Army Service Corps |
| CBU | (Headquarters) Canadian Base Unit |
| CBUCCRCE | Canadian Base Units Construction Company, Royal Canadian Engineers |
| CC | Confined to Camp; or Capability Component |
| CC | Combat Command |
| CC | Camouflage Course |
| CC | Camp Commandant Royal Canadian Air Force Headquarters |
| CC | Canadian Corps |
| CC | Cancellations & Corrections |
| CC | Chief Constructor |
| CC | Civil Convictions |
| CC | Clerk's Course |
| CC | Communicator ( C ) |
| CC | Companion of the Order of Canada |
| CC | Conditioning Centre |
| CC | Confined to Camp |
| CC | Confined to Camp or Camp Commandant |
| CC-V (S)2 | Officers of the Volunteer Reserve appointed for naval construction duties. |
| CC(F)IS | Coastal Command (Flying) Instructors School |
| CC&A-AAS | Canadian Coast & Anti-Aircraft Artillery School |
| CC&ATSPRCOC | Canadian Corps & Army Troops Sub Park, Royal Canadian Ordnance Corps |
| CCAC | Canadian Casualty Assembly Centre - centre where wounded were assessed for either further treatment or return to duty |
| CCACS | (Construction), Company Atlantic Command Signals |
| CCAPMF | Coastal Command Aircraft Preparation& Training Unit |
| CCAS | Canadian Coast Artillery School |
| CCAS | S-1 Victoria |
| CCAS | S-2 Petawawa |
| CCB | Canadian Calvary Brigade |
| CCB | Canadian Cyclist Battalion |
| CCB | Combined Communications Board |
| CCBMGS | Canadian Cavalry Brigade Machine Gun Squadron |
| CCBPNo | Combined Communications Board, Publication Number |
| CCC | Canadian Construction Company |
| CCC | Casualty Clearing Centre |
| CCC | Commonwealth Communications Council |
| CCCC | Canadian Corps Composite Company - unit of men unfit for active duty at the front and attached to Corps Headquarters for employment |
| CCCC | Cape Colony Cyclist Corps |
| CCCCRCASC | Canadian Corps Car Company, Royal Canadian Army Service Corps |
| CCCRCE | Canadian Construction Company, Royal Canadian Engineers |
| CCCS | Canadian Casualty Clearing Station |
| CCCS | Captain (later Commodore) Commanding Canadian Ships and Establishments in the United Kingdom |
| CCCTRCASC | Canadian Command Corps Troops, Royal Canadian Army Service Corps |
| CCCU | Canadian Cemetery Construction Unit |
| CCD | Course Control Document; or Canadian Convalescent Depot |
| CCD | Canadian Command Depot |
| CCD | Canadian Convalescent Depot - facility where soldiers could recover from wounds and rebuild their strength |
| CCD | Canadian Corps Depot |
| CCDC | Canadian Corps Defence Company |
| CCDRCAMC | Canadian Convalescent Depot, Royal Canadian Army Medical Corps |
| CCDSSTRCCS | Canadian Corps Delivery Squadron Signal Troop, Royal Canadian Corps of Signals |
| CCDU | Coastal Command Development Unit |
| CCERCE | Canadian Constructional Engineers, Royal Canadian Engineers |
| CCF | Commander Coastal Forces |
| CCF | Combined Cadet Force |
| CCF/U | Check and Conversation Flight/Unit |
| CCFATU | Coastal Command Fighter Affiliation & Training Unit |
| CCFC | Company Canadian Forestry Corps |
| CCFCORCAPC | Canadian Corps Field Cash Office, Royal Canadian Army Pay Corps |
| CCFPC | Canadian Corps Field Park Company |
| CCFPC | Canadian Corps Field Punishment Camp |
| CCGS | Coat sal Command Gunnery School |
| CCHA | Canadian Corps Heavy Artillery |
| CCI | Chief Chemical Inspector |
| CCIS | Canadian Corps Intelligence Section |
| CCK | Chief Cook |
| CCLPP | Coastal Command Land Plane Pilots Pool |
| CCM | Chief Carpenter's Mate |
| CCM | Canadian Centennial Medal (1967) |
| CCM | Combined Cypher Machine |
| CCM&HC | Canadian Courts Martial & Holding Centre |
| CCMA | Canadian Corps Medium Artillery |
| CCMHQSRCS | Company Canadian Military Headquarters Signals, Royal Canadian Signals |
| CCMOS | Canadian Counter Mortar Officers Staff |
| CCMOSRCA | Canadian Counter Mortar Officer Staff, Royal Canadian Artillery |
| CCMSRCA | Canadian Corps Meteorological Section, Royal Canadian Artillery |
| CCNF | Commodore Commanding Newfoundland Force |
| CCO | Chief of Combined Operations |
| CCO | Civilian Contracts Officer, Joint Air Training Plan |
| CCO | Coder and Cypher Office |
| CCO | Communications, Coding and Cyphering Arrangements |
| CCOD | Canadian Central Ordnance Depot |
| CCOS | Combined Chiefs of Staff |
| CCP | Casualty Collecting Point |
| CCP | Casualty Clearing Post |
| CCPC | Company Canadian Provost Corps |
| CCPP | Coastal Command Preparation Pool |
| CCPPRCASC | Canadian Corps Petrol Park, Royal Canadian Army Service Corps |
| CCPS | Central Computation Pay System |
| CCPS | Computerized Central Pay System |
| CCPU | Canadian Corps Postal Unit |
| CCPU | Canadian Corps Protective Company |
| CCR(C)A | Commander Corps Royal (Canadian) Artillery |
| CCRA | Commander, Corps Royal Artillery (brigadier) |
| CCRA | Commander Corps, Royal Artillery |
| CCRC | Combat Crew Replacement Centre |
| CCRC | Canadian Corps Reinforcement Camp - centre in France where troops were held before being sent to reinforce existing units |
| CCRCAMC | Conditioning Centre, Royal Canadian Army Medical Corps |
| CCRCASC | Composite Company, Royal Canadian Army Service Corps |
| CCRE | Commander, Corps Royal Engineers (lieutenant-colonel) |
| CCRSIGS | Commander, Corps of Royal Signals |
| CCRTC | Canadian Corps Reinforcement Transit Camp |
| CCRU | Canadian Combined Reinforcement Unit |
| CCS | Casualty Clearing Station |
| CCS | Chief Commissary Steward Supervise ship's galley. |
| CCS | Chief Commissary Steward |
| CCS | Canadian Censor Section |
| CCS | Canadian Chaplain Services |
| CCS | Casualty Clearing Station - first medical unit (after the Aid Post) for wounded soldiers evacuated from the front lines |
| CCS | Code and Cypher School |
| CCS | Combined Chiefs of Staff |
| CCS | Casualty Clearing Station |
| CCSDF | Coastal Command Special Duties Flight |
| CCSO | Contraband Control Service Officer |
| CCSRCCS | Canadian Cipher Section, Royal Canadian Corps of Signals |
| CCSRCS | Canadian Corps Signals, Royal Canadian Signals |
| CCT | Canadian Calibration Troop |
| CCTC | Canadian Corps Transport Company |
| CCTC | Commandant, Combined Training Centre |
| CCTCC | Canadian Corps Troops Carrying Column |
| CCTCCRCASC | Commander Corps Troops Carrying Column, Royal Canadian Army Service Corps |
| CCTDU | Coastal Command Tactical Development Unit |
| CCTF | Coastal Command Training Flight/Combat Cairo Task Force Cd Command |
| CCTORCOC | Canadian Corps Troops Ordnance, Royal Canadian Ordnance Corps |
| CCTS | Combat Crew Training Squadron |
| CCTSI | Canadian Corps Troops Service Increment |
| CCTW/SRCEME | Canadian Corps Troops Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CCTW/SRCOC | Canadian Corps troops Workshop, Royal Canadian Ordnance Corps |
| CCU | Canadian Concentration Unit |
| CCWAC | Company Canadian Women's Military Corps |
| CCWACMD | Company Canadian Women's Army Corps Military Corps |
| CCWDL | Canadian Chemical Warfare Defence Laboratory |
| CCWS | Canadian Chemical Warfare School |
| CCZ | Canadian Coastal Zone |
| CD | Coast Defence; Canadian Decoration (service medal); or Civil Defence |
| CD | Canada Draft |
| CD | Canadian Forces Decoration |
| CD | Captain of the Dockyard |
| CD | Clearance Diver |
| CD | Coast Defence (Artillery) |
| CD | Commissioned |
| CD | Convalescent Detachments |
| CD | Coast Defence |
| CD(Records) | Correction on Documents |
| CD/CHH | Coast Defence Chain (Station) High Angle |
| CD/CHL | Coast Defence Chain (Station) Low angle |
| CD&AA | Coast Defence & Anti-Aircraft |
| CD&AAATC | Coast Defence & Anti-Aircraft Artillery Training Centre |
| CD&AAW/SS | Coast Defence & Anti-Aircraft Workshop Section |
| CD&EP | Canadian Defence & Employment Platoon |
| CD&FPB | Canadian Detention and Field Punishment Barracks |
| CD&MS | Canadian Driving and Maintenance School |
| CDA | Canada |
| CDA | Canadian Defence Academy |
| CDA | Canadian Divisional Artillery |
| CDAC | Canadian Divisional Ammunition Depot |
| CDAC | Canadian Divisional Ammunition Column - railhead where divisional ammunition was stored before being shipped to the front |
| CDB | Canadian Detention Barracks |
| CDB | Coast Defence Battery |
| CDBOP | Coasst Defence Battery Observation Post |
| CDBPRCE | Canadian Divisional Bridging Platoon, Royal Canadian Engineers |
| CDC | Canadian Dental Corps |
| CDC | Canadian Disciplinary Centre |
| CDC | Canadian Divisional Calvary |
| CDCF | Coastal Command Cooperation Flight |
| CdCkO | Commissioned Cookery Officer |
| CDCRCE | Canadian Drilling Company, Royal Canadian Engineers |
| CdCtO | Commissioned Catering Officer |
| CDD | Canadian Discharge Depot - centre in Canada where soldiers returning from war were released from service |
| CDDU | Coast Defence Development Unit |
| CDE | Code |
| CdeG | Croix de Guerre |
| CdeG(B) | Croix de Guerre Belgium |
| CdeG(F) | Croix de Guerre France |
| CdEl | Commissioned Electrician |
| CdEng | Commissioned Engineer |
| CDG | Croix de Guerre |
| CDG | Croix de Guerre |
| CdG'nr | Commissioner Gunner |
| CDHQ | Canadian Divisional Headquarters |
| CDI | Command driver increment |
| CDIS | Canadian Division Intelligence Section |
| CDISRCASC | Canadian Detail Issue Depot, Royal Canadian Army Service Corps |
| CDL | Canal Defence Light |
| CDL | Canal Defence Lights |
| CDLS | Canadian Defence Liaison Staff |
| CDMD | Canada Draft Military District |
| CDN | Canadian |
| Cdn-Gds | Canadian Guards |
| CdnConstlEngrs | Canadian Constructional Engineers |
| CdnEngrs | Canadian Engineers |
| CDO | Commando |
| CDO | Commando |
| CDOF | French Western Africa colony |
| CDofDS | Canadian Depot of Dental Stores |
| CDOSC | Camp Daily Orders Sarcee Camp |
| CDOW/SRCOC | Canadian Divisional Ordnance Workshop, Royal Canadian Ordnance Corps |
| CDPU | Canadian Division Postal Unit |
| CDR | Commander |
| CDR | Commander or Lieutenant Colonel |
| CDR | Commodore1 or Brigadier General |
| Cdr | Coder |
| Cdr | Commander |
| CDR | Commander |
| Cdr(D) | Commander (Destroyers) |
| CDRAS&TD | Canadian Detachment Royal Armoured Corps School & Training Depot |
| CDRBCAO/S | Canadian Division Reece Battalion, Canadian Army Overseas |
| CDRE | Commodore |
| CDRJ | Commander, Force J. |
| CDRSRCS | Canadian Despatch Rider Section Royal Canadian Signals |
| CDS | Chief of the Defence Staff |
| CDS | Canadian Divisional Signals |
| CDS | Chief of the Defence Staff |
| CDSA | Controlled Drugs and Substances Act |
| CDSB | Canadian Division Support Battalion |
| CDSB | Commissioned Signal Boatswain |
| CDSCCRC | Canadian Division Section - Canadian Corps Reinforcement Camp |
| CDSCDC | Central Dental Stores, Canadian Dental Corps |
| CDSCRCASC | Canadian Division Supply Company, Royal Canadian Army Service Corps |
| CdShpt | Commissioned Shipwright |
| CdSO | Commissioned Stores Officer |
| CDSRC | Canadian Division Section Reinforcement Camp |
| Cdt | Cadet |
| CDT | Commissioned Telegraphist |
| CDTCRCASC | Canadian Division Troops Company, Royal Canadian Army Service Corps |
| CdTelegr | Cadet Telegraphist |
| CDTS | Canadian Divisional Training School |
| CDVGofCCMHQ | General Duty Veterans Guard of Canada, Canadian Military Headquarters |
| CdWO | Commissioned Writer Officer |
| CE | Canadian Engineers |
| CE | Canadian Engineers - corps of men who built bridges, railway depots, camps, bases and other military installations |
| CE | Chief Engineer |
| CE | Civil Engineer |
| CE | Chief Engineer or Canadian Engineers or Church of England |
| CE ROUND | Round Chemical Energy Round |
| CE(Wks) | Chief Engineer (Works) |
| CE&MPRCE | Canadian Electrical & Mechanical Platoon, Royal Canadian Engineers |
| CE&MSRCE | Canadian Electrical & Mechanical Section, Royal Canadian Engineers |
| CEA | Chief Electrical Artificer |
| CEAURCOC | Canadian Equipment Assembly Unit, Royal Canadian Ordnance Corps |
| CEC | Corps exp?ditionnaire canadien (French only) - force of more than 600,000 men established by the Government of Canada for service overseas |
| CEC-V (S) | Officers of the Volunteer Reserve appointed for special service in the Civil Engineer Corps. |
| CEDIT | Command Engineering Development & Investigation Unit |
| CEEW(A)RCEME | Canadian Engineer Equipment Workshop (Active), Royal Canadian Electrical and Mechanical Engineers |
| CEEW/SRCEME | Canadian Engineer Equipment Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CEEW/SRCOC | Canadian Engine Equipment Workshop, Royal Canadian Ordnance Corps |
| CEF | Casualty Defence Flight; or Canadian Expeditionary Force (1914-1919) |
| CEF | Canadian Expeditionary Force - force of more than 600,000 men established by the Government of Canada for service overseas |
| CEF | Canadian Expeditionary Force |
| CEFCOM | Canadian Expeditionary Force Command |
| CEG(B) | Canadian Employment Group "B" |
| CEHU | Canadian Engineer Holding Unit |
| CELE | Communications/Electronics Engineer |
| CEM | Chief Electrician's Mate |
| CEO | Camp Engineer Officer |
| CEO | Command Engineer Officer |
| CEOTP | Continuing Education Officer Training Plan |
| CEP | Canadian Employment Platoon |
| CEP | Casualty Evacuation Point |
| CEPF | Canadian Echelon Pacific Force |
| CEPO | Civilian Establishment and Pay Officer |
| CER | Combat Engineer Regiment |
| CER | Combat Engineer Regiment |
| CERA | Chief Engine Room Artificer |
| CERD | Canadian Engineer Reinforcement Depot |
| CERD | Canadian Engineer Reinforcement Depot - centre from which reinforcements were allocated to existing engineering units |
| CERU | Canadian Engineer Reinforcement Unit |
| CESF | Commander, Eastern Sea Frontier (U.S.) |
| CESU | Canadian Educational Services Unit |
| CETC | Canadian Engineer Training Centre |
| CETech | Construction Engineering Technician |
| CEURCAMC | Canadian Exhaustion Unit, Royal Canadian Army Medical Corps |
| CEW | Centimetric Early Warning |
| CeylonPLRC | Ceylon Planters Rifle Corps |
| CF | Chaplain to the forces |
| CF | Canadian Forces; or Canadian Fighter; or Communication Flight; or Conversion Flight (number Prefix) |
| CF | Canadian Forces |
| CF | Canadian Fusiliers |
| CF | Composite Flights |
| CF | Chaplin to the Forces |
| CF 98 | 98 Canadian Forces form #98 Report on Injuries |
| CF H SVCS GP | H Svcs Gp Canadian Forces Health Services Group |
| CF JNBCD | JNBCD Canadian Forces Joint Nuclear, Biological and Chemical Defence |
| CF LA | LA Canadian Forces Legal Advisor |
| CF(S) | Communications Flight (Squadron) |
| CF(SP)RRCA | Canadian Field (Self Propelled) Regiment, Royal Canadian Artillery |
| CF/UNIT | Camouflage Flight/Unit |
| CF&PS | Canadian Film and Photo Section |
| CF98 | Canadian Forces Form #98 - Report on Injuries |
| CFA | Canadian Field Ambulance; or Canadian Field Artillery |
| CFA | Calvary Field Ambulance |
| CFA | Canadian Field Ambulance - unit responsible for evacuating the wounded from the front lines to medical centres |
| CFA | Canadian Field Artillery - organization responsible for using medium-calibre guns in direct or indirect support of infantry |
| CFA | Cavalry Field Ambulance |
| CFAD | Canadian Forces Ammunition Depot |
| CFAO | Canadian Forces Administrative Order |
| CFASS | Canadian Field Auxiliary Services Section |
| CFB | Canadian Forces Base |
| CFB | Coastal Force Base |
| CFBMEK | Coast Force Base, Mers-El-Kebir |
| CFBRCA(AF) | Canadian Field Battery, Royal Canadian Artillery, (Active Force) |
| CFC | Canadian Forestry Corps |
| CFC | Chief Fire Controlman |
| CFC | Canadian Forces College |
| CFC | Canadian Forestry Corps - units designated to cut down and process trees to provide wood and lumber |
| CFC | Craftsman |
| CFCCDRCE | Canadian Field Company, Canadian Division, Royal Canadian Engineers |
| CFCCU | Civilian Fighter Control Cooperation Flight |
| CFCEP | Canadian Forces Continuing Education Program |
| CFCF | Canadian Forces Central Fund |
| CFCRCE | Canadian Field Company, Royal Canadian Engineers |
| CFCS | Canadian Forces Communications System; or Central Fighter Control School |
| CFCSC | Canadian Forces Command and Staff College (located in Toronto) |
| CFCSC | Canadian Forces Command and Staff Course |
| CFCTW | Canadian Forestry Corps Training Wing |
| CFDCP | Canadian Forces Drug Control Program |
| CFDS | Canadian Field Dressing Station |
| CFDSRCAMC | Canadian Field Dressing Station, Royal Canadian Army Medical Corps |
| CFE | Canadian Forces Europe; or Central Fighter Establishment |
| CFE | Commander, Coastal Forces, Eastern Mediterranean |
| CFEF | Canadian Far East Force |
| CFES | Canadian Field Educational Section |
| CFEWC | Canadian Forces Electronic Warfare Centre. Located a Shirleys Bay outside Ottawa. |
| CFF | Combined Forces in France |
| CFF | Communication and Ferry Flights |
| CFF | Corps of Civilian (Canadian) Fire Fighters For Service in the United Kingdom |
| CFFM | Canadian Forces Fire Marshal |
| CFFS | Canadian Forces Fleet School |
| CFFT | Coastal Forces Fuelling Tender |
| CFFTS | Canadian Forces Flight Training School |
| CFH | Canadian Field Hospital |
| CFH | Canadian Forces Hospital |
| CFHA | Canadian Forces Housing Agency |
| CFHS | Canadian Field Historical Section |
| CFHSvcsGp | Canadian Forces Health Services Group |
| CFI | Chief Flying Instructor; or Chief Flight Instructor; or Communications Flight Iraq |
| CFI&P | Communication Flight Iraq & Persia |
| CFIOG | Canadian Forces Information Operations Group |
| CFITES | Canadian Forces Individual Training and Education System |
| CFL | Compassionate Farm Leave |
| CFLAWC | Canadian Forces Land Advanced Warfare Centre |
| CFLC | Canadian Forces Liaison Council |
| CFLRS | Canadian Forces Leadership and Recruit School |
| CFMEP | Canadian Forces Military Equivalencies Program |
| CFMG | Canadian Forces Medical Group |
| CFMO | Canadian Forces Medical Order |
| CFMPA | Canadian Forces Military Police Academy |
| CFMS | Canadian Forces Medical Service |
| CFMSO | Coastal Forces Material Supply Officer |
| CFMTP | Canadian Forces Musician Training Plan |
| CFN | Canadian Forces Newspapers |
| CFN | Craftsman, A Private in any 400 series trade (VehTech, Wpns Tech, FCS Tech, Mat Tech) |
| Cfn | Craftsman |
| Cfn | Craftsman (Royal Canadian Electrical and Mechanical Engineers) |
| CFN | Canadian Forces in the Netherlands |
| CFN | Craftsman or Craftsmen |
| CFNCIU | Canadian Forces National Counter-Intelligence Unit |
| CFNES | Canadian Forces Naval Engineering School |
| CFNIS | Canadian Forces National Investigation Service |
| CFOCS | Canadian Forces Officer Candidate School |
| CFORS | Course for Orderly Room Sergeants |
| CFP | Canadian Forces Publication: A Canadian military book or PAM. |
| CFP | Canadian Forces Publication |
| CFPAF | Canadian Forces Personnel Assistance Fund |
| CFPAS | Canadian Forces Personnel Appraisal System |
| CFPC | Canadian Field Punishment Camp |
| CFPCRCE | Corps Field Park Company, Royal Canadian Engineers |
| CFPCUCIC | Canadian Field Press Censor Unit, Canadian Intelligence Corps |
| CFPD | Canadian Forces professional development |
| CFPM | Canadian Forces Provost Marshall (Commanding Officer of Canadian Military Police) |
| CFPO | Canadian Forces Post Office |
| CFPP | Civilian Ferry Pilots Pool |
| CFPP | Canadian Forces Parliamentary Program |
| CFPSA | Canadian Forces Personnel Support Agency |
| CFR | Canadian Forces Registration (vehicles license plate number); or Commissioning From Ranks |
| CFR | Commissioning From the Ranks |
| CFRC | Canadian Forces Recruiting Centre |
| CFRETS | Canadian Forces Recruiting, Education and Training System |
| CFRG | Canadian Forces Recruiting Group |
| CFRIMS | Canadian Forces Resources Information Management System |
| CFRP | Commissioning from the Ranks Plan |
| CFRRCAAP | Canadian Field Regiment, Royal Canadian Artillery, Advance Party |
| CFS | Canadian Forces Station; or Central Flying School |
| CFS | Canadian Field Squadron |
| CFS | Central Flying Schools |
| CFSAL | Canadian Forces School of Administration and Logistic |
| CFSATS | Canadian Forces Small Arms Trainer Simulator |
| CFSC | Canadian Field Survey Company |
| CFSCE | Canadian Forces School of Communications and Electronics |
| CFSCRCE | Canadian Field Survey Company, Royal Canadian Engineers |
| CFSD | Canadian Forces Supply Depot |
| CFSEME | Canadian Forces School of Electrical and Mechanical Engineering |
| CFSME | Canadian Forces School of Military Engineering |
| CFSO | Canadian Forces Supplementary Orders |
| CFSRD | Canadian Field Security Reserve Detachment |
| CFSS | Canadian Field Security Section |
| CFSURCAMC | Canadian Field Surgical Unit, Royal Canadian Army Medical Corps |
| CFTC(ID)RCASC | Canadian General Transport Company (Infantry Division), Royal Canadian Army Service Corps |
| CFTO | Canadian Forces Technical Order |
| CFTSHQ | Canadian Forces Training System Headquarters |
| CFTU | Canadian Field Transfusion Unit |
| CFW | Commander, Coastal Forces, Western Mediterranean |
| CFWD | Communication Flight Western Desert |
| CG | Canada Gazette |
| CG | Coldstream Guards |
| CG | Commanding General (U.S.) |
| CG | Compassionate Grounds |
| CGA | Canadian Garrison Artillery |
| CGA | Ceylon Garrison Artillery |
| CGA | Canadian Garrison Artillery - organization responsible for using large-calibre guns against heavily fortified positions |
| CGB | Canadian Garrison Battalion |
| CGBD | Canadian General Base Depot |
| CGBRB | Canadian General Base Reinforcement Battalion |
| CGCU | Canadian Graves Concentration Unit |
| Cgds | Coldstream Guards |
| CGE | Controller-General of Economy |
| CGG | The Canadian Grenadier Guards Regiment |
| CGG | Canadian Grenadier Guards (Now 22nd Armoured Regiment) |
| CGH | Canadian General Hospital |
| CGH | Canadian General Hospital - permanent hospital where extensive treatment was given to the wounded |
| CGHRCAMC | Canadian General Hospital, Royal Canadian Army Medical Corps |
| CGHU | Canadian General Holding Unit |
| CGIS | Central Gliding Instructors School |
| CGLS | Canadian General Labour Section |
| CGM | Conspicuous Gallantry Medal |
| CGM | Chief Gunner's Mate |
| CGM | Conspicuous Gallantry Medal |
| CGM | Conspicuous Gallantry Medal |
| CGMF | Central Glider Maintenance Flight |
| CGMP | Controller-General of Munitions Production |
| CGMU | Combat Group Medical Unit |
| CGN | Cruiser, Guided Missile, Nuclear |
| CGPC | Canadian General Pioneer Company |
| CGR | Canadian Garrison Regiment |
| CGR | Canadian Garrison Regiment - unit of 13 battalions formed in April 1918 to perform garrison duty in Canada's 13 military districts |
| CGR | Canadian Graves Registrar or Registration |
| CGRU | Canadian General Reinforcement Unit |
| CGRU | Canadian Graves Registration Unit |
| CGS | Central Gunnery School; or Central Gliding School; or Chief of the General Staff |
| CGS | Canadian Government Ship |
| CGS | Chief of the General Staff |
| CGS | Chief of the Imperial General Staff |
| CGS | Chief of the General Staff |
| CGSF | Commander Gulf Sea Frontier |
| CGTC | Canadian General Transport Company |
| CGTWRCEME | Canadian General Troop Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CH | Chain Home (Radar chain) |
| CH | 14th Canadian Hussars |
| CH | Chaplain |
| CH | Chatham Division, Royal Marines |
| CH | Companion Of Honour |
| CH | Construction Hand |
| CH | Convalescent Hospital |
| CH | Chaplain or Chain (Station) |
| CH of O | The Cameron Highlanders of Ottawa Regiment |
| CHAP | Cadet Harassment and Abuse Prevention |
| Chap | Chaplain |
| CHAP | Canadian Harassment and Abuse Prevention |
| Chap(F) | Chaplain of the Fleet |
| Chap(P) | Chaplain (Protestant) |
| Chap(RC) | Director of Chaplain Services (Roman Catholic) |
| CHB | Canadian Highland Battalion (Black Watch Royal Highland Regiment of Canada) |
| CHC-V (G) | Officers of the Volunteer Reserve appointed for general service in the Chaplain Corps. |
| CHC-V (P) | Seniors in theological seminaries commissioned as ensigns (probationary) pending graduation, ordination, and commissioning in the Chaplain Corps. |
| CHC-V (S) | Officers of the Volunteer Reserve appointed for special service in the Chaplain Corps. |
| CHD | Calgary Highlanders Depot |
| CHEL | Chain Home Extra Low (Radar) |
| CHEM | Chemical |
| CHEM | Chemical |
| CHENG | Chief Engineer |
| CHES R | The Cheshire Regiment |
| CHES. | Cheshire |
| CHES. YEO | Cheshire Yeomanry |
| CHESHIRE | Cheshire Regiment |
| Cheshire (Ches) | The Cheshire Regiment |
| ChesR | Cheshire Regiment |
| ChesYeo | Cheshire Yeomanry |
| CHET | Canadian Higher Education Test |
| CHH | Chain (Station) high angle |
| CHL | Chain Home Low (Radar chain) |
| CHL | Chain (Station) low angle |
| ChO | Chief Officer |
| CHofO(MG) | Cameron Highlanders of Ottawa (Machine Gun) |
| CHOP | Line near 47th Meridian dividing the British and Canadian areas of responsibility |
| CHP | Chaplain (Protestant) |
| CHQ&NDHQCRCAMC | Corps Headquarters & National Defence Headquarters Company, Royal Canadian Army Medical Corps |
| CHQAGRCE | Canadian Headquarters Army Group, Royal Canadian Artillery |
| CHQCDC | Corps Headquarters, Canadian Dental Corps OR Canadian Disciplinary Centre |
| CHQCPC(C) | Corps Headquarters Canadian Postal Corps (Canada) |
| CHQCWAC | Corps Headquarters Canadian Women's Army Corps |
| CHQEOFSCRCOC | Corps Headquarters Element of Salvage Control, Royal Canadian Ordnance Corps |
| CHQofBSA | Canadian Headquarters of Base Sub Area |
| CHQPMC | Camp Headquarters, Petawawa Military Camp |
| CHQRCECA | Corps Headquarters Royal Canadian Engineers, Canadian Army |
| CHQRCEME | Corps Headquarters Royal Canadian Electrical and Mechanical Engineers |
| CHQRCOC | Corps Headquarters, Royal Canadian Ordnance Corps |
| CHQSDRCOC | Canadian Headquarters Salvage Depot, Royal Canadian Ordnance Corps |
| CHRA | Canadian Human Rights Act |
| CHRC | Canadian Human Rights Commission |
| CHRC | Chaplain Roman Catholic |
| CHRPCC | Civilian Human Resource Planning and Coordination Committee |
| CHRSC | Civilian Human Resource Service Centers |
| CHRSRCEME | Canadian Heavy Recovery Section, Royal Canadian Electrical and Mechanical Engineers |
| CHRSRCOC | Canadian Heavy Recovery Section, Royal Canadian Ordnance Corps |
| CHS | Canadian Hospital Ship |
| CHSB | Chief Signal Botswain |
| CHSHPT | Chief Shipwright |
| ChSkr | Chief Skipper |
| CHT | Corps of Horse Transport |
| CHU | Canadian Holding Unit |
| CHWR | Chief Writer |
| CHYeoSIG | Chief Yeoman of Signals |
| CI | Chief Instructor |
| CI (A) | Chief Inspector of (Armaments) or (Accidents) |
| CI(I)HQS | Canadian Intelligence (Interrogation) Headquarters Section |
| CIA | Chief Inspector of Armaments |
| CIAL | Commercial Cable Company |
| CIB | Canadian Infantry Brigade |
| CIBC | Canadian Infantry Corps Band |
| CIBCRCASC | Canadian Infantry Brigade Company, Royal Canadian Army Service Corps |
| CIBG | Canadian Infantry Brigade Group |
| CIBGDP(LS) | Canadian Light Infantry Brigade Ground Defence Platoon (Lorne Scot) |
| CIBRB | Canadian Infantry Base Reinforcement Battalion |
| CIBSG(SLI) | Canadian Infantry Brigade Support Group (Saskatoon Light Infantry) |
| CIBUS | Communication Instructions for British Warships in the U.S.A. |
| CIBW/S | Canadian Infantry Brigade Workshop (Royal Canadian Ordnance Corps or Royal Canadian Electrical and Mechanical Engineers) |
| CIBW/SRCEME | Canadian Infantry Brigade Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CIBW/SRCOC | Canadian Infantry Brigade Workshop, Royal Canadian Ordnance Corps |
| CIC | Cadet Instructors Cadre, formerly the Cadet Instructors List or |
| CIC | Cadet Instructor Cadre |
| CIC | Canadian Infantry Corps |
| CIC | Canadian Intelligence Corps |
| CIC | Commander in Chief or Cookery Instruction Centre |
| CIC | Combined Intelligence Committee |
| CID | Committee of Imperial Defence |
| CID | Committee of Imperial Defence |
| CIDB | Canadian Infantry Depot Battalion |
| CIDBn | Canadian Infantry Depot Battalion |
| CIDCC(M)RCASC | Canadian Infantry Division Composite Company (Main), Royal Canadian Army Service Corps |
| CIDCMOS | Canadian Infantry Division Ordnance Field Park, Royal Canadian Ordnance Corps |
| CIDM/GBn(SLI) | Canadian Infantry Division Machine Gun Battalion (Saskatoon Light Infantry) |
| CIDOFPRCOC | Canadian Infantry Division Ordnance Field Park, Royal Canadian Ordnance Corps |
| CIDRTC | Canadian Infantry Division Reinforcement Transit Camp |
| CIDSI | Canadian Infantry Division Service Increment |
| CIDSPRCOC | Canadian Infantry Division Sub Park, Royal Canadian Ordnance Corps |
| CIDTCRCASC | Canadian Infantry Division Troops Company, Royal Canadian Army Service Corps |
| CIDTS | Canadian Infantry Division Training School |
| CIE | Companion Order of the Indian Empire |
| CIE | Chief Instructor of Equipment |
| CIESS | Chief Inspector of Engineer and Signal Stores |
| CIET | Canadian Intermediate Education Test |
| CIET | Canadian Intermediate Educational Test |
| CIF | "C" Infantry Battalion |
| CIG | Chief Instructor in Gunnery |
| CIG | Chief Instructor of Gunnery |
| CIGS | Chief of the Imperial General Staff at the War Office |
| CIGS | Chief of the Imperial General Staff |
| CIGS | Chief of the Imperial General Staff |
| CIHU | Canadian Infantry Holding Unit |
| CIL | Cadet Instructors List |
| CIMGCoy(NBR) | Canadian Independent Machine Gun Company (New Brunswick Regiment) |
| Cin CCNA | Commander in Chief, Canadian North West Atlantic |
| CINC | Commander in Chief |
| CInfC | Canadian Infantry Corps |
| CIntC | Canadian Intelligence Corps |
| CIofCM | Chief Inspector of Catering & Messing |
| CIOSPRCOC | Canadian Infantry Ordnance Sub-Park, Royal Canadian Ordnance Corps |
| CIPAS | Chief Inspector of Passive Air Defence |
| CIPCIC | Canadian Interpreters Pool, Canadian Infantry Corps |
| CIRD | Canadian Indestructible Roller Device (mine clearer) |
| CIRES | Chief Inspector of Royal Engineer Stores |
| CIRU | Canadian Infantry Reinforcement Unit |
| CIST | Chief Inspector of Supplementary Transport |
| CITB | Canadian Infantry Training Brigade |
| CITC | Canadian Infantry Training Centre |
| CITC | Canadian Infantry Centre |
| CITC | Canadian Infantry Training Centre |
| CitoanMTIBRCASC | Canadian Increment to a (Mobilization Training Centre / Mechanical Transport / Military Training OR Movement Train) Inspection Branch, Royal Canadian Army Service Corps |
| CITR | Canadian Infantry Training Regiment |
| CITW/SRCEME | Canadian Infantry Troops Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CITW/SRCOC | Canadian Infantry Troops Workshop, Royal Canadian Ordnance corps |
| CIU | Clinical Investigation Units |
| CIV | Civil or civilian |
| CIV | Civilian or Civil |
| Civ. | Civil |
| CIWB | Canadian Infantry Works Battalion |
| CIWC | Canadian Infantry Works Corps |
| CJATC | Canadian Joint Air Training Centre (Rivers, Manitoba) |
| CJLS | Corps Junior Leaders School |
| CJTF | Combined Joint Task Force |
| CJWSC | Canadian Junior War Staff Course |
| Ck | Cook Take charge of galley. |
| CK | Cook |
| CK | Cook (Ship's) |
| Ck(O) | Cook (Officers) |
| Ck(Prob) | Cook (Probationer) |
| Ck(S) | Cook (Seamen) |
| Ck1c | Cook, First Class |
| Ck2c | Cook, Second Class |
| Ck3c | Cook, Third Class |
| CKMTE | Cook's Mate |
| CKS&DU | Canadian Kit Storage & Disposal Unit |
| CKSD | Canadian Kit Storage Depot |
| CL | Centre line |
| CL | Casualty List |
| Cl | Clasp |
| CL | Canloan List |
| CL | Casualty List - list of soldiers wounded, killed, missing or taken prisoner by the enemy |
| CL | Colonel |
| CL | Compassionate Leave |
| CL | Convalescent Leave |
| CL | Casualty List or Centre Line |
| Cl R | Closr reconnaissance |
| Cl Sp Tp | Close Support Troop |
| CL YEO | City of London Yeomanry |
| CL-SE | Colour Sergeant |
| CLA-AB | Canadian Light Anti-Aircraft Battalion |
| CLACKS. | Clackmannanshire |
| CLAM | Combat Liberation Army of Meaford |
| CLB | Canadian Labour Battalion |
| CLC | Canadian Leave Centre |
| CLDAFHQ | Canadian Liaison Detachment, Allied Forces OR Air Force Headquarters |
| CLE | Central Landing Establishment |
| CLE | Clerk |
| CLES | Canadian Legion Educational Service |
| CLFCSC | Canadian Land Force Command and Staff College (located in Kingston, ON) |
| CLFCSC | Canadian Land Force Command and Staff College |
| CLFHSRCAMC | Canadian Light Field Hygiene Sections, Royal Canadian Army Medical Corps |
| CLH | Canadian Light Horse |
| CLH | Canadian Light Horse - cavalry unit, originally intended as a scouting force |
| CLK | Clerk |
| CLK | Clerk |
| ClkAcc | Clerk Accounting |
| ClkAdmSupr | Clerk Administrative Supervisor |
| ClkEng | Clerk Engineering |
| ClkGen | Clerk General |
| ClkStats | Clerk Statistics |
| ClkSteno | Clerk Stenographer |
| ClkTyp | Clerk Typist |
| Cloc | Chief Locator |
| ClofCPC(C) | Canadian Line of Communication Provost Company (Consolidated) |
| CLofCT | Canadian Line of Communication Terminal |
| CLP | Canadian Labour Pool |
| CLQ | Class Qualified |
| CLRSRCOC | Canadian Light Recovery Station, Royal Canadian Ordnance Corps |
| CLS | Chief of the Land Staff; or Central Landing School |
| CLS | Chief of the Land Staff |
| CLURCE | Canadian Landmark Unit, Royal Canadian Engineers |
| CLWS | Canadian Legion War Services |
| CLY | County of London Yeomanry |
| CM | Career Manager; or Court Martial |
| CM | Carpenter's Mate Use hand and power tools. Take charge of ship ventilation, painting, watertight control, drainage. Understand shoring and drydocking. |
| CM | Chief Metalsmith |
| CM | Canadian Centennial Medal (1967) |
| CM | Commissaryman |
| CM | Communicator |
| CM | Member of the Order of Canada |
| CM/L | Controlled Mine Laying |
| CM1c | Carpenter's Mate, First Class |
| CM2c | Carpenter's Mate, Second Class |
| CM3c | Carpenter's Mate, Third Class |
| CMA | Central Mediterranean Area |
| CMA | Corps of Military Accountants |
| CMACRCASC | Canadian Motor Ambulance Convoy, Royal Canadian Army Service Corps |
| CMASCL | Canadian Military Attache Staff Canadian Legation |
| CMB | Coastal Motorboat |
| CMBG | Canadian Mechanized Brigade Group |
| CMBURCAMC | Canadian Mobile Bath Units, Royal Canadian Army Medical Corps |
| CMC | Canadian Medical Centre |
| CMC | Canadian Military College |
| CMCLG | Canadian Movement Control Liaison Group |
| CMCR(PLNBH)AF | Canadian Motorcycle Regiment (Princess Louise's New Brunswick Hussars) Active Force |
| CMCU | Canadian Movement Control Unit |
| CMD | Command |
| CMD | Conventional Munitions Disposal |
| CMD | Command |
| CMDBSN | Commissioner Boatswain |
| CMDLondonMD1 | Central Mechanization Depot, Royal Canadian Ordnance Corps |
| Cmdr | Commander |
| Cmdr | Commander (Naval) |
| Cmdr. | Commander |
| CMDRE | Commodore |
| CMDRE | Commodore |
| CME | Canadian Military Engineer |
| CMEC | Canadian Mechanical Equipment Company |
| CMF | Central Mediterranean Force |
| CMF | Central Med Forces |
| CMF | Central Mediterranean Force |
| CMF | Central Mediterranean Force |
| CMG | Canadian Medical Group |
| CMG | Companion of the Order of St Michael and St George |
| CMG | Order of St. Michael and St. George (Companion) |
| CMG | Commander of the Order of St. Michael and St. George |
| CMGB | Canadian Mechanized Brigade Group |
| CMGBde | Canadian Machine Gun Brigade |
| CMGC | Canadian Machine Gun Corps |
| CMGC | Canadian Machine Gun Corps - soldiers with machine guns responsible for supporting or defending against infantry attack |
| CMGCMF | Canadian Meteorological Group - Central Mediterranean Force |
| CMGHU | Canadian Machine Gun Holding Unit |
| CMGO | Corps Machine Gun Officer |
| CMGRU | Canadian Machine Gun Reinforcement Unit |
| CMGTC | Canadian Machine Gun Training Centre |
| CMH | Calgary Military Hospital |
| CMH | Canadian Military Hospital |
| CMH | Centimeter Height Finding |
| CMHL | Canadian Mobile Hygiene Laboratory |
| CMHQ | Canadian Military Headquarters |
| CMHQC | Canadian Military Headquarters Course |
| CMHQROX-LPSOW | Canadian Military Headquarters Records Office X-List, PSOW |
| CMHRCAMC | Camp Military Hospital, Royal Canadian Army Medical Corps |
| CMHRCAMC | Camrose Military Hospital, Royal Canadian Army Medical Corps |
| CMHRCAMC | Charlottetown Military Hospital, Royal Canadian Army Medical Corps |
| CMHRCAMC | Chatham Military Hospital, Royal Canadian Army Medical Corps |
| CMHRCAMC | Chicoutimi Military Hospital, Royal Canadian Army Medical Corps |
| CMHRCAMC | Chilliwack Military Hospital, Royal Canadian Army Medical Hospital |
| CMHRCAMC | Cornwall Military Hospital, Royal Canadian Army Military Hospital |
| CMIS | Career Management Information System |
| CMJ | Chief Military Judge |
| CMM | Chief Machinist's Mate |
| CMM | Order of Merit (Commander) |
| CMMG | Canadian Motor Machine Gun Brigade |
| CMMGC | Canadian Motor Machine Gun Corps |
| CMMP | Corps of Military Mounted Police |
| CMMS | Canadian Motorcycle Maintenance School |
| CMN-SURCAMC | Canadian Mobil Neuro-Surgical Unit, Royal Canadian Army Medical Corps |
| CMO | Chief Medical Officer |
| CMO | Chief Medical Officer or Chief Maintenance Officer |
| CmoMM | Chief Motor Machinist's Mate |
| CMOS | Counter Mortar Officer Staff |
| CMP | Chief of Military Personnel; or Corps of Military Police |
| CMP | Corps of Military Police |
| CMP | Corps of Military Police |
| CMP&DB | Canadian Military Prison & Detention Barracks |
| CMPA | Canadian Military Police Association |
| CMPC | Canadian Military Police Corps |
| CMPLRCASC | Canadian Mobile Pet. Laboratories, Royal Canadian Army Service Corps |
| CMPS | Canadian Map Photographic Section |
| CMPS | Canadian Military Police Corps |
| CMR | Canadian Mounted Rifles |
| CMR | Coll?ge militaire royal de Saint-Jean |
| CMR | Canadian Mounted Rifles - mounted soldiers originally, later used largely as infantry |
| CMR | Cape Mounted Riflemen |
| CMR(GGHG)AF | Canadian Motorcycle Regiment (Governor General's Horse Guards) Active Force |
| CMRCASF(DYRCH) | Canadian Motorcycle Regiment, Canadian Active Service Force (17th Duke of York's Royal Canadian Hussars) |
| CMRPRCASC | Canadian Medium Regiment Platoon, Royal Canadian Army Service Corps |
| CMRS | Canadian Medical Rest Station |
| CMRSRCAMC | Canadian Medical Rest Station, Royal Canadian Army Medical Corps |
| CMS | Chief of Maritime Staff |
| CMS | Canadian Military Staff |
| CMS | Canadian Mission Staff |
| CMSA | Co-operations with the British Ministry of War Transport in the United States |
| CMSC | Cape Medical Staff Corps |
| CMSC | Co-operations with the British Ministry of War Transport in Canada |
| CMSC | Corps of Military Clerks |
| CMSC | Corps of Military Staff Clerks |
| CMSCCO | Corps of Military Staff, Clerks Corps Orders |
| CMSPEC | Canadian Military Section Port Executive Committee |
| CMSTMUSA | Camp Myles Standish, Tauton Massachusetts, U.S.A. |
| CMT | Corps of Motor Transport, Army Service Corps |
| CMTC | Canadian Manoeuvre Training Centre |
| CMTCCM | Canadian Militia Training Course, Camp Macauley |
| CMTech | Construction and Maintenance Technician |
| CMTRCA | Canadian Modelling Team, Royal Canadian Artillery |
| CMTRURCEME | Canadian Mobile Tire Repair Unit, Royal Canadian Electrical and Mechanical Engineers |
| CMTS | Central Mechanical Transport Stores |
| CMU | Civilian Maintenance Unit |
| CMU | Construction and Maintenance Units |
| CMU | Civilian Maintenance Unit |
| CN&CS | Central Navigation & Control School |
| CNCoy | Cannon Company |
| Cnd | Canadian |
| Cnd. | Canadian |
| CndDetnBks | Canadian Detention Barracks |
| CNDHQ | Commandant National Defence Headquarters |
| CNE | Canadian National Exhibition |
| CNEC | Chief Naval Engineering and Construction |
| CNES | Chief Naval Equipment and Supply |
| CNF | Commonwealth Naval Forces |
| CNK | Change Next of Kin |
| CNMO | Canadian Naval Mission Overseas |
| CNO | Canadian Naval Order |
| CNP | Chief of Naval Personnel |
| CNPWRCAMC | Canadian Neuro Psychiatric Wing, Royal Canadian Army Medical Corps |
| CNR | Canadian National Railways |
| CNR | Canadian Naval Regulations |
| CNS | Central Navigation School |
| CNS | Chief of the Naval Staff |
| CNSRHRCAMC | Canadian Nursing Sister's Rest Home, Royal Canadian Army Medical Corps |
| CNVT&TU | Canadian Night Vision Training & Testing Unit |
| CNVTS | Central Night Vision Training School |
| CNW-44 | Canadian Naval War Plan |
| CO | Commanding Officer (can also be OC); or Chain Overseas (Overseas version of CH) |
| CO | Company |
| CO | Commanding Officer - any officer in command of a specific unit (usually battalion level and up) |
| CO | Constable |
| CO | Cook (Officer's) |
| CO | Corps Orders |
| CO | Commanding Officer or Conscientious Objector |
| CO(A) | Camp Orders (Angler) |
| CO/SPD | Canadian Overseas Postal Depot |
| CO&MERU | Canadian Ordnance & Mechanical Engineer Reinforcement Unit |
| COA | Course of Action |
| COA | Chief Ordnance Accountant |
| COA | Corps of Ordnance Artificers |
| COA | Course of Action |
| COAC | Commanding Officer Atlantic Coast |
| COAV | Commanding Officer Auxiliary Vessels |
| COBD | Canadian Ordnance Beach Detachment |
| COBD | Canadian Ordnance Branch Detachment |
| COC | Canadian Ordnance Corps |
| COC | Combined Operations Centre |
| COC(AC) | Combined Operations School (Army Camp) |
| COC&BTC | Combined Operations Centre & Basic Training Centre |
| COCDC | Corps Orders, Canadian Dental Corps |
| COCPC | Corps Orders Canadian Postal Corps |
| COCTC | Canadian Ordnance Corps Training Centre |
| COCTUSC | Canadian Officer Cadet Training Unit Selection Centre |
| COCWAC | Corps Orders, Canadian Women's Army Corps |
| COD | Command Ordinance Depot |
| COD | Coast Observer Detachment |
| COD | Central Ordnance Depot |
| COD | Command Ordnance Depot or Central Ordanance Depot |
| CODCRCOC | Central Ordnance Depot Company, Royal Canadian Ordnance Corps |
| CODE | Description |
| CODRCOC | Camp Ordnance Depot, Royal Canadian Ordnance Corps |
| COEMETC | Canadian Ordnance Electrical Mechanical Engineer Training Course |
| COF | Canadian Army Occupation Force |
| COF | Canadian Occupational Force |
| CofAS | Corps of Army Schoolmasters |
| CofC | Queen's Own Cameron Highlanders of Canada |
| CofF | Chaplain of the Fleet |
| CofHRS | Corps of Hussars |
| CofI | Court of Inquiry - group of officers convened to investigate specific questions or events |
| CofLondYeo | County of London Yeomanry |
| CofLRS | Corps of Lancers |
| COFPRCOC | Canadian Ordnance Field Park, Royal Canadian Ordnance Corps |
| CofS | Chief of Staff |
| CofS | Cross of Sacrifice (Memorial Cross) |
| CofW | Cable or Wireless |
| COHQ | Combined Operations Headquarters |
| COI | Conflict of Interest |
| COI | Court of Inquiry |
| COIN | Counter-Insurgency Operations |
| COL | Colonel |
| COL | Chain Overseas Low (radar AMES Type 5) |
| Col | Colonel |
| Col | Colonel or Column |
| Col. | Colonel |
| COLDM GDS | Coldstream Guards |
| COLDM GDS | Coldstream Guards |
| Coldm Gds (CG) | The Coldstream Guards (The Coldstream Regiment of Foot Guards) |
| COLN | Column |
| COLN | Colonel or Column |
| Coln. | Column |
| COLO | Combined Operations Liaison Office |
| Com | Command - unit under the command of one officer or non-commissioned officer |
| COM | Commissioner |
| Com'd | Command - unit under the command of one officer or non-commissioned officer |
| Com10thFleetCandR | Commander 10th Fleet Convoy and Routeing (US) |
| ComBtswn | Commissioned Boatswain |
| COMC&S | Canadian Ordnance Maintenance Company & Sections |
| COMD | Command, commanded, commandant or commander |
| Comd | Command - unit under the command of one officer or non-commissioned officer |
| Comd | Commandant |
| Comd | Commander |
| Comd | Commanding |
| COMD | Command or Commander or Commanding |
| Comd. | Command |
| ComdEngr | Command Engineer |
| COMDG | Commanding |
| COMDGEN | Commanding General (U.S.) |
| COMDR | Commander |
| Comdt | Commandant |
| COMDT | Commandant |
| COME | Chief Ordnance Mechanical Engineer |
| COME | Chief Ordnance Mechanical Engineer |
| COMERU | Canadian Ordnance and Mechanical Engineer Reinforcement Unit |
| COMINCH | Commander in Chief, US Fleet |
| CominchCandR | Commander in Chief, US Fleet, Convoy and Routeing |
| COMINT | Communications Intelligence |
| Comm | Commission |
| Comm | Commodore |
| COMM(S) | Communication(s) |
| Commande (D) | Commander (Destroyers) |
| COMMO | Communications |
| Commodore(D)WA | Commodore (Destroyers), Western Approaches |
| CommofCustoms | Commissioner of Customs |
| COMMS Z | Z Communications Zone |
| COMN | Communication |
| Comn | Communication |
| ComOp | Communications Operator |
| ComOpSupr | Communications Operator Supervisor |
| COMP | Composite |
| COMP | Component or Composite |
| ComPC(A) | Communications Performance Checker (Air) |
| ComPC(G) | Communications Performance Checker (Ground) |
| COMPO | Composite Ration (also called comp rat) |
| COMSEN | Communications Centre |
| ComTech | Communications Technician |
| ComTech(A) | Communications Technician (Air) |
| ComTech(G) | Communications Technician (Ground) |
| CON | Control or Convoy or Concrete |
| CON R | Contact reconnaissance |
| CONC | Concentrate, concentrated or concentration |
| Conc | Concentrate |
| Conc | Concentration |
| CONC | Concentrated or Concentration |
| Cond | Conductor |
| COND | Commanding Officer Naval Divisions |
| Condr | Conductor |
| CONDR | Conductor |
| Connav (No) | Navy Authority, Washington |
| ConnRang | Connaught Rangers |
| Const | Constable |
| Constl | Constructional |
| CONSTR | Construct, constructed or construction |
| constr | Construction |
| CONSTR | Construct or Costruction |
| Constr. | Construction |
| ConstrC | Constructor Captain |
| CONTR | Controller |
| CONTR | Controller |
| CONV | Conversion |
| Conv | Convalescent - a soldier recovering from wounds or illness |
| ConvoyCYeoSigs | Convoy Chief Yeoman of Signals |
| ConvoyLSig | Convoy Leading Signalman |
| ConvoyOSig | Convoy Ordinary Signalman |
| ConvoySig | Convoy Signalman |
| ConvoyYeoSigs | Convoy Yeoman of Signals |
| COO | Chief ordnance officer |
| COO | Chief Ordnance Officer |
| COOD | Co-ordinate or Co-ordinating |
| Cook(O) | Cook (Officer's) |
| Cook(S) | Cook (Ship's) |
| COORD | Co-ordinate, co-ordinated, co-ordinating or co-ordination |
| Coord | Co-ordinating or co-ordinate |
| COOS(M)RCOC | Canadian Ordnance Officer's Shop (Mobile), Royal Canadian Ordnance Corps |
| COP | Commander of Port |
| COPC | Commanding Officer Pacific Coast |
| COPD | Canadian Overseas Postal Depot |
| COpSO | Chief Operational Services Officer |
| Cor | Corvettes |
| COR | Confirmation of Rank |
| CORC | Canadian Ordnance Railhead Company |
| CORCAMC | Corps Orders, Royal Canadian Army Medical Corps |
| CORCC | Canadian Overseas Railway Construction Corps |
| CORCRCOC | Canadian Ordnance Railhead Company, Royal Canadian Ordnance Company |
| CORCT | Canadian Overseas Railway Construction Troops |
| CORD | Central Ontario Regimental Depot |
| CORD | Central Ontario Regimental Depot - facility in England used to assemble men and to store and administer equipment and materials |
| CORD | Commanding Officer Reserve Divisions |
| CORNWL. | Cornwall |
| Corp | Corporal |
| Corpl | Corporal |
| CORU | Canadian Ordnance Reinforcement Unit |
| COS | Chief of Staff; or Company Orderly Sergeant; or Change of Strength |
| Cos | Companies |
| CoS | Chief(s) of Staff |
| COS | Change of Strength |
| COS | Coming Off Strength |
| COS | Company Orderly Sergeant |
| COS | Chief of Staff or Controller of Ordnance Service |
| COS | Colonel of Staff |
| COS&CB | Canadian Officers Survey & Classification Board |
| COSAI | Canadian Ordnance Stores Accounting Inspectorate |
| Cositrep. | Combined Situation Report |
| COSSAC | Chief of Staff to Supreme Allied Commander |
| COSSAC | Chief of Staff to the Supreme Allied Commander (Designate) |
| COSSAC. | Chief of Staff to the Supreme Allied Commander (designate) |
| COTC | Canadian 0fficers Training Corps |
| COTC | Canadian Officer Training Centre |
| COTC | Canadian Officer Training Corps |
| COTC | Canadian Overseas Telecommunication Corporation |
| COTU | Coastal Operational Training Unit |
| COU | Called Out Under |
| COVGofC | Corps Orders Veterans Guard of Canada |
| COX | Coxswain Work with canvas and handle boats. Know signaling. |
| Cox | Coxswain |
| Cox'n | Coxswain |
| COY | Company |
| Coy | Company - unit of approximately 200 men, divided into 4 platoons |
| COY | Company |
| Coy. | Company |
| CP | Command Post; or Close Protection |
| CP | Chief Photographer |
| CP | Chaplains Pool |
| CP | Command Post |
| CP | Casualty Collecting Point |
| CP | Command Post |
| CPACRCAMC | Canadian Prophylactic Ablution Centre, Royal Canadian Army Medical Corps |
| CPB | Canadian Parachute Battalion |
| CPB | Canadian Pioneer Battalion |
| CPBRCE | Canadian Pioneer Battalion, Royal Canadian Engineers |
| CPC | Canadian Postal Corps |
| CPC | Canadian Pension Commission (Department of Veterans Affairs) |
| CPC | Canadian Postal Corps |
| CPC | Canadian Provost Corps |
| CPC | Corps Protection Company |
| CPCCMF(ADHOC) | Canadian Pioneer Company, Central Mediterranean Force |
| CPCD | Canadian Provost Corps Depot |
| CPCO/S(PU) | Canadian Postal Corps Overseas, (Postal Units) |
| CPCURCASC | Canadian Port Clearance Unit, Royal Canadian Army Service Corps |
| CPDPRCE | Canadian Pile Driving Platoon, Royal Canadian Engineers |
| CPDRCAPC | Command Pay Detachment, Royal Canadian Army Pay Corps |
| CPE | Central Photographic Establishment |
| CPF | Canadian Patrol Frigate. (Halifax Class); or Coastal Patrol Flight |
| CPF | Canadian Patriotic Front |
| CPhM | Chief Pharmacist's Mate |
| CPhoM | Chief Photographer's Mate |
| CPI | Corps of Permanent Instructors |
| CPinME | Canadian Personnel in Middle East |
| CPL | Corporal |
| CPL | Corporal |
| CPLAM | Corporal Ambulance |
| CPMH | Camp Petawawa Military Hospital |
| CPMHRCAMC | Chorley Park Military Hospital, Royal Canadian Army Medical Corps |
| CPMMLRCOC | Canadian Pilot Model Mobile Laundry, Royal Canadian Ordnance Corps |
| CPO | Chief Petty Officer (Navy Rank); or Command Pay Office |
| CPO | Chief Petty Officer |
| CPO | Civilian Personnel Officer |
| CPO | Chief Petty Officer or Command Post Officer |
| CPO1 | Chief Petty Officer 1st Class |
| CPO2 | Chief Petty Officer 2nd Class |
| CPPR | Civilian Performance Planning and Review |
| CPR | Chief Parachute Riggger |
| CPR | Canadian Pacific Railway |
| CPRD | Canadian Public Relations Detachment |
| CProC | Canadian Provost Corps |
| CPRS | Canadian Public Relations Services |
| Cprtr | Chief Printer |
| CPRU | Canadian Public Relations Unit |
| CPS | Canadian Planning Staff |
| CPS | Canadian Publishing Section |
| Cpt | Captain |
| CPTC | Canadian Parachute Training Centre |
| CPTCAC | Canadian Pioneer Troop, Canadian Armoured Corps |
| CPTHO | Captain of Hospital Orderlies |
| CPTRE | Captain Royal Engineers |
| CPTU | Canadian Parachute Training Unit |
| CPTUCPC | Canadian Postal Tracing Unit, Canadian Postal Corps |
| CPW/S(ADHOC)RCEME | Canadian Port Workshop (Ad Hoc), Royal Canadian Electrical and Mechanical Engineers |
| CPW/S(ADHOC)RCOC | Canadian Port Workshop (Ad Hoc), Royal Canadian Ordnance Corps |
| CPWEU | Canadian Petroleum Warfare Experimental Unit |
| CQM | Chief Quartermaster |
| CQMS | Company Quartermaster Sergeant |
| CQMS | Company Quartermaster-Sergeant |
| CQMS | Company Quarter Master Sergeant |
| CQSC | Camp Quaretering Staff Captain |
| Cr | Commander |
| CR | R?giment de la Chaudi?re (French only) |
| CR | Central Registry |
| CR | Confirmation of Rank |
| CR | Control Rate |
| CR | Control Rating |
| CR | Control Ratings |
| CR | Coast Regiment |
| CR(C)E | Commander, Royal (Canadian) Engineers |
| CR(T) | Calgary Unit (Tank) |
| CR/AC | Canadian Re-allocation Centre |
| CRA | Commander Royal Artillery |
| CRA | Commander Royal Artillery (Divisional or corps HQ: brigadier) |
| CRA | Commander, Royal Artillery |
| CRA | Commanding Royal Artillery |
| CRA | Compulsory Retirement Age |
| CRA | Commander Royal Artillery |
| CRAC | Commander Royal Armoured Corps |
| CRAMC | Commander, RAMC |
| CRAOC | Commander, RAOC |
| CRASC | Commander, RASC |
| CRASC | Commander, Royal Army Service Corps |
| CRASC | Commander Royal Army Service Corps |
| CRB | Career Review Board |
| CRB | Canadian Rifle Battalion |
| CRB | Career Review Board |
| CRB(M) | Career Review Board (Medical) |
| CRBRCA | Canadian Rocket Battery, Royal Canadian Artillery |
| CRBW/SRCEME | Canadian Radar Battery Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CRC | Control and reporting center |
| CRC | Canadian Reception Camp |
| CRC | Casualty Retraining Centre |
| CRC | Chief Registration Clerk |
| CRC | Corps Reception Camp |
| CRCAMC | Company Royal Canadian Army Medical Corps |
| CRCASCATBC | Company Royal Canadian Army Service Army Tank Brigade Company |
| CRCASCATBC | Company Royal Canadian Army Service Corps |
| CRCC | Canadian Railway Construction Corps |
| CRCC | Canadian Road Construction Company |
| CRCE | Company Royal Canadian Engineers |
| CRCE(PB) | Commander Royal Canadian Engineers (Permanent Bridges) |
| CRCE(W) | Commander Royal Canadian Engineers (Works) |
| CRCEME | Company Royal Canadian Electrical and Mechanical Engineers |
| CRCL | Canadian Red Cross List |
| CRCORU | Canadian Royal Canadian Ordnance Corps Reinforcement Unit |
| CRCR | Canadian Reserve Cavalry Regiment |
| CRCR | Canadian Reserve Calvary Regiment - cavalry reserve unit based in England |
| CRCRCAMC | Casualty Retraining Centre, Royal Canadian Army Medical Corps |
| CRCRCEME | Canadian Recovery Company, Royal Canadian Electrical and Mechanical Engineers |
| CRCRCOC | Canadian Recovery Company, Royal Canadian Ordnance Corps |
| CRD | Controller of Research & Development |
| CRD | Canadian Reception Depot |
| CRD | Canadian Remount Depot |
| CRD(LS) | Canadian Repatriation Depot (LS) |
| CRDF | Cathode Ray Direction Finding |
| CRDFT(S)C | Canadian Radio Detection Finder Training (School) Centre |
| CRDFTC | Canadian Radio Direction Finder Training Centre |
| CRE | Commander Royal Engineers |
| CRE | Central Reconnaissance Establishment |
| CRE | Commander Royal Engineers |
| CRE | Commander Royal Engineers |
| CRecs | Controller of Records (Air) |
| CREME | Commander Royal Electrical and Mechanical Engineers |
| CRF | Controller of Research & Development |
| CRFTTC | Canadian Reinforcement Transit Camp |
| CRGTPRCASC | Canadian Reinforcement Group Transit Platoon, Royal Canadian Army Service Corps |
| CRGWP | Canadian Reinforcement Group Workshop Platoon |
| CRI | Chinese Regiment of Infantry |
| CRIS | Cranio-Rectal Insertion Syndrome |
| CRLE | Canadian Radio Location Establishment |
| CRM | Chief Radioman |
| Crmn | Crewman |
| CRN | Change Regimental Number |
| CRO | Central Records Office; or Civilian Repair Organization |
| CRO | Canadian Records Office |
| CRO | Chief Recruiting Officer |
| CRO | Corps Reserve of Officers |
| CRO | Officer in Charge Central Registry |
| CRO | Corps Routine Order |
| CROCRCE | Canadian Railway Operation Company, Royal Canadian Engineers |
| CRP | Civilian Repair Party |
| CRPG | Canadian Ranger Patrol Group |
| Crpl | Corporal |
| CRR(PLDG) | Canadian Reconnaissance Regiment (Princess Louise Dragoon Guards) |
| CRRCA | Coast regiment, Royal Canadian Artillery |
| CRS | Chief Review Services; or Control and Reporting School |
| CRS | Canadian Recce Squadron |
| CRS | Captured Records Section (US Dept of the Army) |
| CRS | Central Recruiting Troop |
| CRS | Corps Rest Station |
| CRS-CIB | Canadian Recce Squadron-Canadian Infantry Brigade |
| CrStGeo | Cross of Saint George (Russia) |
| CRT | Canadian Railway Troops |
| CRT | Chief Radio Technician |
| CRT | Canadian Railway Troops - men recruited and organized to operate railways in rear areas |
| CRT | Continuous Reserve Training |
| CRT | Cathode Ray Tube |
| CRTC | Canadian Radar Training Centre |
| CRTC(A) | Canadian Reconnaissance Training Centre (Active) |
| CRTC(R) | Canadian Reconnaissance Training Centre (Reserve) |
| CRU | Civilian Repair Unit |
| CRU | Canadian Reinforcement Unit |
| CRU | Civil Resettlement Unit |
| CRUPU | Canadian Reinforcement Units Postal Units |
| CRURCA | Canadian Rocket Unit, Royal Canadian Artillery |
| Crypto | Cryptographer |
| CS | Close support |
| CS | Commissary Steward |
| CS | Cease |
| CS | Christian Science (Church) |
| CS | Commandant Staff |
| CS | Communicator (Ship's) |
| CS | Communicator (Supplementary) |
| CS | Cypher Section |
| CS(A) | Controller of Supply (Air) |
| CS(No) | Admiralty File Number |
| CS&AC | Canadian Selection & Appraisal Centre |
| CS&TO | Camp Supply & Transport Officer |
| CSA | Canadian Small Arms |
| CSA | Consular Shipping Adviser |
| CSAA | Controller of Small Arms Ammunition |
| CSAFVIRCEME | Canadian Section Armoured Fighting Vehicles Inspectorate, Royal Canadian Electrical and Mechanical Engineers |
| CSAFVTS | Canadian Section Armoured Fighting Vehicles Technical Staff |
| CSAI | Canadian School of Army Instruction |
| CSAS(E) | Canadian Small Arms School (Eastern) |
| CSAS(WC) | Canadian Small Arms School (Western Canada) |
| CSATC | Canadian Small Arms Training Centre |
| CSB | Canadian Shipping Board |
| CSBASRAC | Canadian Special BASRA Company |
| CSBD | Canadian Special Base Depot |
| CSC | Cadet Services of Canada |
| CSC | Canadian Service College |
| CSC | Chiefs of Staff Committee |
| CSC | Commissariat Staff Corps |
| CSC | Corporal Signal Corps |
| CSCC | Canadian Section Claims Commission |
| CScotR | Canadian Scottish Regiment |
| CSCRCOC | Canadian Salvage Corps, Royal Canadian Ordnance Corps |
| CSD | Code of Service Discipline |
| CSDE | Central Servicing Development Establishment |
| CSDS | Canadian Special Driving School |
| CSDU | Central Salvage Depot Unit |
| CSE | Course |
| CSE | Central Signals Establishment |
| CSE | Colour Sergeant |
| CSE | Course |
| CSEAFHQ | Canadian Section Echelon Allied Forces, Headquarters |
| CSEC | Canadian Special Employment Company |
| CSEE | Canadian Signals Experimental Establishment |
| CSEF | Canadian Siberian Expeditionary Force |
| CSF | Central Signals Establishment; or Communications and Support Flight |
| CSF | Chief Shipfitter |
| CSG | Clerk Stenographer Group |
| CSGHQ2ndEch | Canadian Section General Headquarters, 2nd Echelon |
| CSGHQE | Canadian Section General Headquarters Echelon |
| CSgt | Colour Sergeant |
| CSHQBGNR | Canadian Section Headquarters, Brussels, GRN |
| CSHQCC | Cypher Section Headquarters Canadian Corps |
| CSI | Companion of the Star of India |
| CSI | Companion of the Most Exalted Star of India |
| CSIB | Canadian Special Infantry Battalion |
| CSIC | Canadian Special Infantry Company |
| CSICoy | Canadian Special Infantry Company |
| CSIS | Canadian Security and Intelligence Service |
| CSK | Chief Storekeeper |
| CSKSU | Canadian Surplus Kit Storage Unit |
| CSM | Company Sergeant Major |
| CSM | Chief Signalman |
| CSM | Company Sergeant-Major - senior non-commissioned officer in a company |
| CSM | Company Sergeant Major |
| CSME | Canadian School of Military Engineering |
| CSMH | Christie Street Military Hospital |
| CSO | Chief Signals Officer |
| CSO | Chief Staff Officer |
| CSO | Chief Signals Officer |
| CSO | Chief Signal Officer |
| CSO | Chief Signal Officer |
| CSofA | Canadian School of Artillery |
| CSofAA | Canadian School of Army Administration |
| CSofI | Canadian School of Infantry |
| CSOI | Commandant School of Instruction |
| CSOR | Canadian Special Operations Regiment |
| CSOR | Chief Staff Officer Reserves |
| CSp(*) | Chief Specialist |
| CSPDE | Combined services Project Development Unit |
| CSR | Combat Stress Reaction |
| Csr | Cruiser |
| CSR(MG) | Canadian Scottish Regiment (Machine Gun) |
| CSR&DE | Canadian Signals Research & Development Establishment |
| CSRCCS | Construction Section, Royal Canadian Corps of Signals |
| CSRD | Chief Superintendant Research Department |
| CSRU | Canadian Signals Reinforcement Unit |
| CSS | Combined Signals School |
| CSS | Communications and Support Squadron; or Combat Service Support |
| CSSB | Canadian Special Service Battalion |
| CSSCRCOC | Canadian Special Stores Company, Royal Canadian Ordnance Corps |
| CSSD | Canadian Special Salvage Detachment |
| CSt | Chief Steward |
| CST | Coast |
| CST BTY | Coast Battery |
| CSTC | Canadian Signal Training Centre |
| CSTech | Communications Systems Technician |
| CSTTB | Canadian Standing Trades Test Board |
| CSTV | Coil Skids Towing Vessel |
| CSU | Communications and Support Unit |
| CSU | Central Statistical Unit |
| CSupt | Commodore Superintendant |
| CSURCEME | Canadian Servicing Unit, Royal Canadian Electrical and Mechanical Engineers |
| CSURCOC | Canadian Salvage Units, Royal Canadian Ordnance Corps |
| CSV | Camp Staff Volunteer |
| CSWSTRCCS | Canadian Shock Wave Section Type, Royal Canadian Signals Corps |
| CSWTS | Canadian Section Weapons Technical Staff |
| CT | Component Transfer |
| CT | Chief Telegrapher |
| CT | Communication Trench |
| CT | Component Transfer |
| CT | Communication Trench or Chief Technician or Clothing and Textiles |
| CT(CFC)TC | Camp Tremblay (Canadian Forestry Corps) Training Centre |
| CTA | Canadian Troop Aldershot |
| CTACRCASC | Corps Troop Ammunition Company, Royal Canadian Army Service Corps |
| CTAT | Controlled Technology Access Transfer |
| CTBA | Ceased to be Attached |
| CTBE | Ceased to be Entitled |
| CTC | Combined Training Centre |
| CTC | Canadian Training Centre |
| CTC | Chief Turret Captain |
| CTC | Canadian Tank Corps |
| CTC | Canadian Transit Camp |
| CTC | Canadian Troops Colchester |
| CTC | Combined Training Centre or Cavalry Tank Corps |
| CTC(TB)CPC | Canadian Tobacco Depot (Type B), CPC (see above for various meanings of CPC) |
| CTCRCE | Canadian Tunnelling Company, Royal Canadian Engineers |
| CTCSPCProC | Canadian Traffic Control Section Provost, Canadian Provost Corps |
| CTCURCACMF | Canadian Traffic Control Unit, Royal Canadian Artillery, Central Mediterranean Force |
| CTCW | Canadian Transit Camp Wing |
| CTD | Canadian Training Division |
| CTDCPC | Canadian Tobacco Depot, CPC (see above for various meanings of CPC) |
| CTDS(ER) | Canadian Tank Delivery Squadron (Elgin Regiment) |
| CTDSSD | Canadian Tank Delivery Squadron Signals Detachment |
| CTDUCAC | Canadian Tank Demonstration Unit, Canadian Armoured Corps |
| CTF | Combined Task Force (refers to a multi-national TF) |
| CTF | Commander Task Force |
| CTFARCAMC | Canadian Training Field Ambulance, Royal Canadian Army Medical Corps |
| CTH | The Cape Town Highlanders (The Duke of Connaught and Strathearn's Own) |
| CTH | Canadian Troops Hereford |
| CTLC | Canadian Technical Liaison Group |
| CTM | Chief Torpedoman's Mate |
| CTMU | Canadian Town Major Unit |
| CtnAsst | Canteen Assistant |
| CtnMngr | Canteen Manager |
| CTO | Compensated Time Off |
| CTO | Central Telegraph Office |
| CTO | Chief Treasury Officer |
| CTO(N) | Chief Treasury Officer (Navy) |
| CTOO/S | Canadian Treasury Office Overseas |
| CTP | Commonwealth Training Plan (aka BCATP); or Course Training Plan |
| CTP | Canadian Transport Platoon |
| CTP | Course Training Plan |
| CTPCRCASC | Corps Troops Petrol Company, Royal Canadian Army Service Corps |
| CTPRCASC | Canadian Tipper Platoon, Royal Canadian Army Service Corps |
| CTPRCASC | Canadian Transport Platoon, Royal Canadian Army Service Corps |
| CTps | Corps Troops |
| CTR | Coast Training Regimnt |
| CTRCA | Calibration Troop, Royal Canadian Artillery |
| CtRep | Court Reporter |
| CTS | Combat Training School; or Clothe The Soldier |
| CTS | Canadian Training School |
| CTS | Clothe the Soldier |
| CTS | Composite Training School |
| CTS | Conversion Training Squadron |
| CTSC | Corps Troops Supply Column |
| CTSCRCASC | Corps Troop Supply Column, Royal Canadian Army Service Corps |
| CTTB | Central Trade Test Board |
| CTTC | Canadian Tank Transport Company |
| cttee | Committee |
| CTTS | Communications & Target-towing Squadron; or Civilian Technical Training School |
| CTTW/SRCEME | Canadian Tank Troops Workshop, Royal Canadian Electrical and Mechanical Engineers |
| CTTW/SRCOC | Canadian Tank Troops Workshop, Royal Canadian Ordnance Corps |
| CTU | Combat Training Unit; or Crew Training Unit |
| CTU | Commander Task Unit (U.S.) |
| CTW | Combat Training Wing |
| CU | Conversion Unit; or Camouflage Unit; or Communications Unit |
| CU | Converted |
| CU | Camp Utopia |
| CU | Caribbean-United Kingdom Convoy |
| CU | Conducting Unit |
| CU | Conversion Unit |
| CU | Camouflage Unit or Communications Unit |
| CUMB. | Cumberland |
| CUMBRIA | Cumbria |
| CUNEF | Canadian Component United Nations Emergency Force (Middle East) |
| CUS | Course (U.S.) |
| CUT | Cutter (U.S.) |
| CV | Common Valve; or Combat Vehicles |
| CV | Aircraft Carrier (U.S.) |
| CV | Communicator (V) |
| CV | Cross of Valour |
| CV | Command Vehicle or Closed Vessel |
| CVA&CG | Canadian Vehicle Assembly & Control Group |
| CVD | Central Vehicle Depot |
| CVD | Commercial Vessel Defensive |
| CVDtURCAMC | Canadian Venereal Disease Treatment Unit, Royal Canadian Army Medical Corps |
| CVE | Auxiliary Aircraft Carrier (U.S.) |
| CVE | Carrier Vessel Escort |
| CVHGCASF | Company Veterans Home Guard, Canadian Active Service Force |
| CVIRCEME | Canadian Vehicle Inspectorate, Royal Canadian Electrical and Mechanical Engineers |
| CVN | Aircraft Carrier, Nuclear |
| CVO | Commander of the Royal Victorian Order |
| CVO | Royal Victorian Order (Commander) |
| CVO | Commander of the Royal Victorian Order |
| CVP | Convoy Programme |
| CVR (T) OR (W) | (T) or (W) Combat Vehicle Reconnaissance (Tracked) or (Wheeled) |
| CVSM | Canadian Volunteer Service Medal |
| CVWS | Canadian Vehicle Waterproofing School |
| CW | Communication Wing; or Chemical Warfare |
| CW | Chemical Warfare |
| CW | Commissioned Warrant |
| CW | Communicator (W) |
| CW | Chemical Warfare or Continuous Wave |
| CW COY | Chemical Warfare Company |
| CW(No) | Admiralty Record Office File |
| CW/S&PC | Canadian Workshop and Park Company |
| CWAAF | Canadian Women's Auxiliary Air Force |
| CWAC | Canadian Women's Army Corps |
| CWAC ACCOMM | ACCOMM Canadian Women's Army Corps Accommodations |
| CWACBTC | Canadian Women's Army Corps, Basic Training Centre |
| CWACCS | Canadian Women's Army Corps, Composite Stores |
| CWACDO | Canadian Women's Army Corps, District Orders |
| CWACMB | Canadian Women's Army Corps, Military Band |
| CWACO | Canadian Women's Army Corps, Ottawa |
| CWACPB | Canadian Women's Army Corps, Pipe Band |
| CWACTC | Canadian Women's Army Corps, Training Centre |
| CWB | Canadian Wives Bureau |
| CWC | Chemical Warfare Course |
| CWDL | Chemical Warfare Defence Laboratory |
| CWGC | Commonwealth War Graves Commission |
| CWGC | Commonwealth War Graves Commission |
| CWL | Chemical Warfare Laboratories |
| CWM | Canadian War Museum |
| CWNS | Canadian War Narrative Section |
| CWO | Chief Warrant Officer |
| CWO | Chief Warrant Officer |
| CWP | Contractor's Working Party |
| CWP | Coast Watching Post (or Patrol) |
| CWRO | Canadian War Records Office |
| CWS | Central Wireless Station |
| CWS(IC) | Canadian Wireless Section (Intelligence Corps) |
| CWSF | Commander Western Sea Frontier |
| CWSRCE | Canadian Works Section, Royal Canadian Engineers |
| CWT | Hundredweight(s) |
| CWT | Chief Watertender |
| CWT | Chief Water Tender |
| CWT | Hundredweight |
| CWTC | Chemical Warfare Training Centre |
| CWTD | Cold Weather Test Trail Detachment |
| CWTV | Calibration Wireless Telegraph Vessel |
| CXO | Chief Examination Officer |
| CY | The Cheshire Yeomanry (Earl of Chester's) Regiment |
| CY | Chief Yeoman |
| Cy | Company |
| CY | Cheshire Yeomanry |
| Cyc | Cyclist |
| CYC | Cyclist |
| CYS | Chief Yeoman of Signals |
| CZ | Canal Zone (Panama) (U.S.) |
| CZ | Clyde Division - Royal Naval Volunteer Reserve |
| CZP | Correct Zeroing Point |
| CZT | Civil Zone Time |
| CZTU | Czechoslovak Training Unit |
| D | Destroyer |
| D | Deffered |
| D | Dragoon Guards and Dragoons Regimental Number Prefix |
| D | Driver or Docks or Detonation or Deay |
| d | penny |
| D AIR | Director of Air |
| D Arm D | Director of Armament Development |
| D Arm P | Director of Armament Production |
| D CDTS | Cdts Directorate of Cadets |
| D DENT SVCS | Dent Svcs Director Dental Services |
| D Docks | Director of Docks Sevice |
| D ENV P | Env P Director, Environmental Protection |
| D FIN OPS | Fin Ops Directorate Financial Operations |
| D Hgs | Director of Hirings Service |
| D Inst P | Director of Instrument Production |
| D Lab | Director of Labour Service |
| D LAW HR | Law HR Director Law Human Resources |
| D LAW MJPR | Law MJPR Director Law Military Justice Policy and Research |
| D LAW/ I | Law/ I Director of Law/ International |
| D LAW/MIL PER | Law/Mil Per Director of Law/Military Personnel |
| D Lds | Director of Lands Service |
| D MAR PERS | Mar Pers Directorate of Maritime Personnel |
| D MED POL | Med Pol Director Medical Policy |
| D MED SVCS | Med Svcs Director Medical Services |
| D MIL C | Mil C Director Military Careers |
| D Mov | Director of Movements |
| D of A | Director of Artillery (Ministry of Supply) or Director of Accounts |
| D of C (AM) | Director of Contracts (Air Ministry |
| D of E | Duration of Engagement or Director of Equipment |
| D of E | Director of Establishments |
| D of H | Director of Hygiene |
| D of I | Director of Intelligence |
| D of M | Director of Manning or Director of Mechanisation |
| D of O | Director of Organisation |
| D of Ops (Home) | Director of Operations |
| D of Organ | Director of Organistation |
| D of P | Director of Postings |
| D of Plans | Director of Plans |
| D of S | Director of Signals |
| D OF W | of W Died of Wounds |
| D of W | Director of Works |
| D of W | Duration of War |
| D Path | Director of Pathology |
| D Plans | Director of Military Operations (Plans) |
| D Post | Director of Postal Services |
| D PUB POL | Pub Pol Directorate of Public Policy |
| D REMOUNTS | Direcotr of Remounts |
| D Sal | Director of Salvage |
| D Sigs | Director of Signals |
| D Svy | Director of Survey |
| D Tn | Director of Transportation |
| D Vets & Remounts | Director of Veterinary Services and Remounts |
| D-M2 | Officers of the Merchant Marine Reserve holding deck licenses in the Merchant Marine. |
| D-QLine | Drocourt-Qu?ant Line |
| D-V (G) | Officers of the Volunteer Reserve to the line for general service in deck duties. |
| D-V (S)2 | Officers of the Volunteer Reserve to the line for special service in deck duties. |
| D:CTRCASC | Drivers: Corps Troops, Royal Canadian Army Service Corps |
| D. of CORN L.I. | Duke of Cornwall's Light Infantry |
| D.C.E. | Deputy Chief Engineer (DCE) |
| D.C.L.I. | Duke of Cornwall's Light Infantry (DCLI) |
| D.L.I. | Durham Light Infantry (DLI) |
| D(iv)HQ | Divisional Headquarters |
| D/C | Depth Charge |
| D/DEMS | Director of Defensively Equipped Merchant Ships |
| D/DSR | Deputy Director of Scientific Research |
| D/DWT | Deputy Director of Warfare and Training |
| D/F | Direct Finding (Station) |
| D/F | Direction Finding / Finder |
| D/G | Degaussing |
| D/JAP | Deputy Judge Advocate of the Fleet |
| D/WRCNS | Director of Women's Royal Canadian Naval Service |
| d/wt | Dead-weight |
| D&D | Devond and Dorsetshire Regiment |
| D&M | Driving and Maintenance |
| D&T | Development and Training |
| DA | Distributing Authority |
| DA | Dominion Arsenal |
| DA | Director of Accounts (Air) |
| DA | Disturbance Allowance |
| DA | Deputy Adjutant or direct action (fuze) or Deputy Assistant |
| DA/S | Director of Anti-submarine |
| DA&PC | Division Ammunition & Petrol Company |
| DA&QMG | Deputy Adjutant and Quartermaster General |
| DAA | Divisional Administrative Area |
| DAA & CD | Deputy Assistant-Director of Anti-Aircraft and Coast Defence |
| DAAD | Deputy Assistant Adjutant General |
| DAAG | Deputy Assistant Adjutant General |
| DAAG | Deputy Assistant Adjutant-General |
| DAAG(Sigs) | Deputy Assistant Adjutant General (Signals) |
| DAANDQMG | Deputy Adjutant and Quartermaster General |
| DAAP | Dependent's Allowance & Assigned Pay |
| DAAQMG | Deputy Assistant Adjutant and Quartermaster General |
| DAB | Dependent's Allowance Board |
| DAB12 | Dependent's Allowance Board Claimant's Statement |
| DAB28 | Dependent's Allowance Board (Medical Examiner's Report) Statutory Declaration |
| DAC | Divisional Ammunition Company |
| DAC | Divisional Ammunition Column - organization responsible for supplying ammunition to a division |
| DAC | Divisional Ammunition Company - organization responsible for supplying ammunition to a division |
| DAC | Divisional Ammunition Column or Director of Army Contracts |
| DACG | Deputy Assistant-Chaplain General |
| DACRCAMC | Division Ammunition Company, Royal Canadian Army Medical Corps |
| DAD | Deputy Assistant-Director or Defence Aid Post |
| DAD(Svy) | Deputy Assistant Director of Surveys |
| DAD(Tn) | Deputy Assistant Director of Transportation |
| DADAPS | Deputy Assistant Director Army Postal Services |
| DADCS | Deputy Assistant Director of Chaplain Services |
| DADES | Deputy Assistant Director of Engineer Services |
| DADG | Deputy Assistant-Director-General (in combination) |
| DADG Tn | Deputy Assistant-Director-General of Transportation |
| DADH | Deputy Assistant-Director of Hygiene |
| DADMS | Deputy Assistant Director of Medical Services |
| DADMS | Deputy Assistant Director Medical Services |
| DADOS | Deputy Assistant Director of Ordnance Services (battalion echelon headquarters for divisions) |
| DADOS | Deputy Assistant Director of Ordnances Services |
| DADOS | Deputy Assistant Director Ordnance Services |
| DADPS | Deputy Assistant-Director of Postal Services |
| DADQ | Deputy Assistant Director of Quartering |
| DADR | Deputy Assistant Director of Roads |
| DADR | Deputy Assistant-Director of Remounts |
| DADS | Director of Army Dental Services or Deputy Assistant-Director of Supplies |
| DADST | Deputy Assistant Director of Supplies and Transport |
| DADST | Deputy Assistant Director Supply & Transport |
| DADT | Deputy Assistant-Director of Transportation |
| DADVS | Deputy Assistant Director of Veterinary Services |
| DAE | Director of Aeronautical Engineering |
| DAE | Director of Army Education |
| DAEF | Distributing Authority, Eastern Fleet |
| DAEM | Distributing Authority, Eastern Mediterranean |
| DAF | Desert Air Force |
| DAFL | Director of Allied Air Co-operation and Foreign Liason |
| DAFM | Director of Air Force Manning |
| DAFR | Director of Air Force Recruiting |
| DAFTF | Desert Air Force Training Flight |
| DAFV | Director of Armoured Fighting Vehicles |
| DAG | Deputy Adjutant General |
| DAG | Deputy Adjutant General |
| DAG(M) | Deputy Adjutant General (National Resources Mobilization Act of 1940) |
| DAGB | Defended Area Goose Bay |
| DAI | Director of Aeronautical Inspection |
| DAI | Director of Aeronautical Inspection or direct action impact (fuze) |
| DAIP | Director Access to Information and Privacy |
| DAL&KINGC | Dalhousie & King Contingent |
| DALM | Director of American Liaison and Munitions |
| DAO | District Audit Office |
| DAO | Director of Air Organization |
| DAO | Dental Associate |
| DAOD | Defense Administration Orders and Directives |
| DAOD | Defence Administrative Orders and Directives |
| DAP | Director of Air Personnel |
| DAP | Divisional Aid Post |
| DAP | Divisional Ammunition Park |
| DAP(P2) | P.2 Branch, Director of Air Personnel (Civilian Personnel Administration) |
| DAPA | Director of Air Personnel Administration |
| DAPM | Deputy Assistant Provost Marshal |
| DAPPP | Director Accounts Processing, Pay and Pensions |
| DAPS | Director of Airmen Personnel Services |
| DAQMG | Deputy Assistant and Quartermaster General |
| DAQMG | Deputy Assistant Quartermaster General |
| DAQMG | Deputy Assistant-Quarter-Master General |
| DAQMG | Deputy Assistant Quartermaster General |
| DAR | Designation of Acting Ranks |
| DART | Disaster Assistance Response Team |
| DAS | Director of Air Signals |
| DASD | Director of Air Staff Duties |
| DASO | Deputy Armament Supply Officer |
| DASRS | Director of Air Sea Rescue Services |
| DAT | Director of Air Training |
| DataP | Data Processor |
| DATCO | Deputy Air Traffic Controller |
| DATS | Director Auxiliary Territorial Service |
| DB | Discharge Badge (For Services Rendered) |
| DB | Depot Battalion |
| DB Ops | Director of Bomber Operations |
| DBF | Destroyed By Fire |
| DBR | Damaged Beyond Repair |
| DBS | Distressed British Seaman |
| DBURCASC | Division Bath Unit, Royal Canadian Army Service Corps |
| DC | Duty Captain |
| DC | Director of Contracts |
| DC POL | Pol Directorate Contracting Policy |
| DC-V (G) | Officers of the Volunteer Reserve for general service in the Dental Corps. |
| DC-V (S) | Officers of the Volunteer Reserve for special service in the Dental Corps. |
| DCAS | Deputy Chief of the Air staff |
| DCAS | Detachment Canadian Auxiliary Section |
| DCASEU(AS) | Detachment Canadian Auxiliary Section Entertainment Unit (Army Show) |
| DCB | Distant Control Boat |
| DCC | District Cadet Camp |
| DCCL | Director, Claims and Civil Litigation |
| DCCMSC | Detachment Corps, Corps of Military Staff Clerks |
| DCCO | Director Civilian Classification and Organization |
| DCCO | Deputy Chief of Combined Operations |
| DCCR | Depot Canadian Cavalry Regiment |
| DCCRCAMC | Division Composite Company, Royal Canadian Army Medical Corps |
| DCCWAC | Depot Company, Canadian Women's Army Corps |
| DCCWAC(CSW) | Depot Company, Canadian Women's Army Corps (Composite Stores Wing) |
| DCD | Director Communication Development |
| DCDRCASC | Debert Camp Detachment, Royal Canadian Army Service Corps |
| DCDS | Deputy Chief of the Defence Staff |
| DCE | Deputy Chief Engineer |
| DCE(PB) | Deputy Chief Engineer (Permanent Bridges) |
| DCE(Wks)(Adm)(Rear) | Deputy Chief Engineer (Works) (Administration) (Rear) |
| DCEP | Director Civilian Employment Policies |
| DCFC | Detachment Canadian Forestry Corps |
| DCG | Deputy Chaplain-General |
| DCGS | Deputy Chief of the General Staff |
| DCHRHP | Director of Civilian Human Rights and Harassment Programs |
| DCIA | Deputy Chief Inspector of Armament |
| DCIEM | Defence and Civil Institute of Environmental Medicine. |
| DCIGS | Deputy Chief of the Imperial General Staff |
| DCIGS | Deputy Chief of the Imperial General Staff |
| DCLI | The Duke of Cornwall's Light Infantry Regiment |
| DCLI | Duke of Cornwall's Light Infantry |
| DCLI | The Duke of Cornwall's Light Infantry |
| DCM | Distinguished Conduct Medal |
| DCM | District Court Martial |
| DCM | Distinguished Conduct Medal - medal for bravery awarded to other ranks (non-officers) |
| DCM | Distinguished Conduct Medal or District Court Martial |
| DCMC | District Course Methods of Coaching |
| DCN | Decontamination |
| DCNS | Deputy Chief of the Naval Staff |
| DCO | Deputy Commanding Officer; or Duty Carried Out |
| DCO | Deputy Commanding Officer |
| DCO | District Cadet Orders |
| DCOR | Duke of Connaught's Own Rifles (28th Armoured Regiment) |
| DCOS | Deputy Chief of Staff |
| DCOS | Deputy Chief of Staff |
| DCP | Director of Civilian Personnel |
| DCRCASC | District Company, Royal Canadian Army Service Corps |
| DCRCH | 6th Duke of Connaught's Royal Canadian Hussars |
| DCRE | Deputy Commander, Royal Engineers |
| DCRP | Director of Civil Research and Production |
| DCS | Director of Chaplain Services |
| DCS | Damage Control School |
| DCS | District Chaplain Services |
| DCS | Daily Casualty Summary |
| DCSA | Directorate Casualty Support and Administration |
| DCSO | District Camp School Orders |
| DCT | Director Combined Training |
| DCT | Director of Clothing and Textiles |
| DCTS | District Course Training Staff |
| DCVM | District Course Vehicle Maintenance |
| DCW&S | Director Chemical Warfare & Smoke |
| DD | Duplex Drive. Amphibious tanks with flotation screens |
| DD | District Depot |
| DD | Deputy Director |
| DD | Destroyer Division (U.S.) |
| DD | Discharge Dead |
| DD | Duty Discipline |
| DD (Movements) | Deputy Director of Movements |
| DD (Q Maint) | Deputy Director (Quartermaster Maintenance) |
| DD of M | Deputy Director of Manning |
| DD of P | Deputy Director of Postings |
| DD of S(1) | Deputy Director of Signals (Air Communications) |
| DD of S(4) | Deputy Director of Signals (Radio Servies) |
| DD of SI | Deputy Director of Signals (Wireless Intelligence) |
| DD Photos | Deputy Director of Photography |
| DD Plans | Deputy Director of Plans |
| DD PR | Deputy Director of Public Relations |
| DD PS | Deputy Director of Personal Services |
| DD RA | Deputy Director of Royal Artillery |
| DD(A)WD | District Depot (Active) Windsor Detachment |
| DD(NRMA) | District Depot (National Resources Mobilization Act of 1940) |
| DD(Svy) | Deputy Director of Surveys |
| DD(tanks) | Duplex-Drive (amphibious) |
| DDA | Deputy Director of Accounts |
| DDAD | Deputy Director of Aircraft Development |
| DDAFV | Deputy Director of Armoured Fighting Vehicles |
| DDALM | Deputy Director of American Liaison and Munitions |
| DDArmD | Deputy Director of Armament Development (Air) |
| DDAT | Deputy Director of Air Tactics |
| DDC | Division Dental Company |
| DDC (AM) | Deputy Director of Contracts (Air Ministry) |
| DDCDC | Dental Detachment Canadian Dental Corps |
| DDDO | Direction for Domestic Operations |
| DDE | Deputy Director of Equipment |
| DDED | Deputy Director of Engine Development (Air) |
| DDEM | Director(ate) of Design, Equipment and Mechanization |
| DDES | Deputy Director of Engineer Services |
| DDG | Destroyer, Guided Missile |
| DDG of M | Deputy Director-General Mechanisation |
| DDG of TS | Deputy Director-General of Tank Supply |
| DDGCA | Deputy Director-General of Civil Aviation |
| DDGCD | Deputy Director-General of Chemical Defence |
| DDGMS | Deputy Director-General of Medical Services |
| DDGNC | Deputy Director-General of Operations (Naval Co-operation) |
| DDGOF | Deputy Director-General of Ordnance Factories |
| DDGTD | Deputy Director-General of Tank Design |
| DDH | Destroyer, Helicopter carrying |
| DDHG | Deputy DIrector of the Home Guard |
| DDHO | Deputy Director of Operations (Home) |
| DDHS | Deputy Director Historical Section |
| DDL | Destroyer Deck Landings |
| DDME | Deputy Director of Mechanical Engineering |
| DDMI | Deputy Director of Military Intelligence |
| DDMI | Deputy Diretor of Military Intelligence |
| DDMO | Deputy Director of Military operations |
| DDMO | Deputy Director of the Meteorological Office |
| DDMO | Deputy Diretor of Military Operations |
| DDMO(O) | Deputy Director of Military Operations (Overseas) |
| DDMP | Deputy Director of Maintenance Plans |
| DDMS | Deputy Director of Medical Services |
| DDMS | Deputy Director of Medical Services |
| DDMT | Deputy Director of Military Training |
| DDMT | Deputy Director of Military Training |
| DDO | Deputy Director of Organisation |
| DDOP | Deputy Director of Organisation Planning |
| DDOR | Deputy Director of Operational Requirements |
| DDOSI | Deputy Director of Organisational Services and Intelligence |
| DDPD | District Depot Provost Detachment |
| DDR | East Germany Deutsche Democratic Republic also GDR |
| DDRD | Deputy Director of Radio Development (Air) |
| DDRS | Deputy Director of Repair and Servicings |
| DDS | Director Dental Services |
| DDSAL | Director of Disposals, Sales, Artifacts and Loans |
| DDSD | Deputy Director of Staff Duties |
| DDSD (W) | Deputy Director of Staff Duties (Weapons) |
| DDSM | Deputy Director of Service Maintenance (Air) |
| DDSM | Deputy Director of Servicing and Maintenance |
| DDSP | Deputy Director of Supply Planning (Air) |
| DDSS | Deputy Director of Supply Services (Air) |
| DDST | Deputy Director of Supplies and Transport |
| DDST | Deputy Director of Supplies and Transport |
| DDT (A) | Deputy Director of Training (Armament) |
| DDTA | Deputy Director of the Territorial Army |
| DDTCO | Deputy Director Training Combined Operations |
| DDTF | Deputy Director of Flying Training |
| DDTS | Deputy Director of Technical Training (Schools) |
| DDTT | Deputy Diretor of Technical Training |
| DDV | Deputy Director of Vehicles |
| DDVET | Deputy Director of Victualling, Eastern Theatre |
| DDW | Deputy Director of Weapons |
| DDWB | District Depot Wolseley Barracks |
| DDWO | Deputy Director of War Organisation |
| DE | Deckhand |
| DE | Convoy Escort Vessel |
| DE | Destroyer Escort Vessel (U.S.) |
| DE | Duration of Emergency |
| DE-M | Officwers of the Merchant Marine Reserve holdingn deck and engineering licenses in the Merchant Marine. |
| DE-V (G) | Officers of the Volunteer Reserve to the line for general service in deck and engineering duties. |
| DE-V (S)2 | Officers of the Volunteer Reserve to the line for special service in deck and engineering duties. |
| DE&CD | Director Electrical & Communication Designs |
| DEAL | Deal Division, Royal Marines |
| Dec | Decoration |
| DECN | Decontamination |
| DECN | Decontamination |
| DECPR | Director, External Communications and Public Relations |
| DED | Director(ate) of Engineer Development |
| DEE | Director of Electrical Engineering |
| DEF | Defend, defended, defence or defensive |
| Def | Defence |
| DEF | Defence or Defend or Defensive |
| Def. | Defence |
| Defensor | National Defence Headquarters (Address used in telegrams) |
| DEL | Deliver, delivered or delivery |
| DEL | Defence Electric Light |
| Del. | Delivery |
| DEL/DLY | Delivery |
| DEMS | Defensively Equipped Merchant Ships |
| DEMTech | Dental Equipment Maintenance Technician |
| DENB. | Denbighshire |
| DenbighYeo | Denbigh Yeomanry |
| DEngrs | Director(ate) of Engineers |
| DENT | Dental |
| DentA | Dental Assistant |
| DentA | Dental Association |
| DentClA | Dental Clinic Assistant |
| Dents | Director Dental Services |
| Dents(Air) | Staff Officer Dental Services (Air) |
| DentThr | Dental Therapist |
| DEO | Direct Entry Officer |
| DEO | District Engineer Officer |
| DEO | Direct Entry Officer |
| DEO | Direct Entry Officer |
| DEOP | Direct entry officer plan |
| DEOVR | Duke of Edinburgh's Own Volunteer Rifles |
| DEP | Depot |
| DEP | Delayed Entry Program; or Director Ethics Program |
| Dep | Depot |
| DEP | Director Engineering and Personnel |
| DEP | Depot |
| Dept | Department |
| DEPT | Department |
| DERBY YEO | Derbyshire Yeomanry (TA) |
| DERBY Yeo | Derbyshire Yeomanry |
| DERBYS. | Derbyshire |
| DERCA | District Establishment, Royal Canadian Artillery |
| DERCAHAD | District Establishment, Royal Canadian Artillery, Halifax Armament District |
| DERRRY | County Derry (Londonderry) |
| DERV | fuel Diesel engined road vehicle fuel |
| Des | Destroyers |
| DES | Director of Engineer Services |
| DES | Drummer Sergeant |
| DES | Director of Educational Services or Director of Engineer Stores Services |
| DESOIL | Diesel Oil (U.S.) |
| Desp | Mentioned in Despatches |
| Despatches | Mentioned in Despatches |
| Dest | Destoyer |
| DET | Detach, detached or detachment |
| Det | Detachment |
| DET | Detached or Detachment |
| Det. | Detachment |
| Det'n | Detention |
| Detn | Detention |
| Detn | Detention |
| DETT | Detachment (detachment to another unit or Squadron) |
| DEU | Distinctive Environmental Uniform |
| DEVON | Devonshire Regiment |
| DEVON | The Devonshire Regiment |
| Devon (Dev) | The Devonshire Regiment |
| DEVON. | Devon(shire) |
| DevonR | Devonshire Regiment |
| DEW | Distant Early Warning (The DEW-line radar system) |
| DEW LINE | Line Distant Early Warning Line |
| DF | Defensive fire or direction finding |
| DF | Destroyer Flotilla |
| DF | Direction Finding |
| DF | Defensive Fire or Direction-finding (by raido) |
| DF Ops | Director of Fighter Operations |
| DFASS | Director of Fleet Accounting, Supply and Secretariat |
| DFC | Distinguished Flying Cross |
| DFC | Distinguished Flying Cross |
| DFCS | Day Fighter Combat School, part of CFE |
| DFD | Detailed for Duty |
| DFLS | Day Fighter Leaders School |
| DFM | Distinguished Flying Medal |
| DFM | Distinguished Flying Medal |
| DFMS | Defensively Equipped Merchant Ships |
| DFPP | Director of Financial Policy and Procedures |
| DFS | Direct Fire Support |
| DFT | Director of Flying Training |
| DFW | Director of Fortifications and Works |
| DG | Degaussing |
| DG | Director General |
| DG | Degaussing Gear |
| DG | Delivery Group |
| DG | Dragoon Guards |
| DG | Dragoon Guards |
| DG | Dragoon Guards |
| DG & CP | Director of Gun and Carriage Production |
| DG COND SVC | Cond Svc Director General Conditions of Service |
| DG INT | Int Director General Intelligence |
| DG Mech E | Director-General of Mechanical Equipment |
| DG of E | Director-General of Economy |
| DG Tn | Director-General of Transportation (Services) |
| DGA | Director General of Aviation |
| DGAD | Director General Arsenals Division |
| DGADR | Director General Alternative Dispute Resolution |
| DGAE | Director-General of Army Equipment |
| DGAMS | Director-General of Army Medical Services |
| DGAP | Director-General of Ammunition Production |
| DGAR | Director-General of Army Requirements |
| DGC&AA | Director General Coast and Anti-Aircraft Defences |
| DGCA | Director-General of Civil Aviations |
| DGCESP | Director General Civilian Employment Strategies and Programs |
| DGD | Director of Ground Defence |
| DGDS | Director General Dental Services |
| DGE | Director General Environment |
| DGE (S) | Director-General of Equipment (and stores) |
| DGEPS | Director General Equipment Program Services |
| DGER | Director General Employee Relations |
| DGES | Director General of Engineer Services |
| DGFDA | Director General Force Development Analysis |
| DGHG & TA | Director-General of the Home Guard and Territorial Army |
| DGHS | Director General Health Services. |
| DGHS | Director General Health Services |
| DGIIP | Director General International and Industry Programs |
| DGISD | Director-General India Stores Department |
| DGLPD | Director General Learning and Professional Development |
| DGLRC | Director General Labour Relations and Compensation |
| DGMC | Director General (Military Careers) |
| DGMC | Director General Military Careers |
| DGMS | Director General of Medical Services |
| DGMS | Director-Genera of Medical Services |
| DGNS | Director General Nuclear Safety |
| Dgns | Dragoons |
| DGNS | Dragoon Guards |
| DGO | Degaussing Officer (Naval) |
| DGO | Director-General of Organisation |
| DGOF | Director-General of Ordnance Factories |
| DgofMS | Director General of Medical Services |
| DGP | Director-General of Programmes |
| DGPA | Director General (Public Affairs) |
| DGPA | Director General Personnel Administration |
| DGPA | Director General (Public Affairs) |
| DGPandI | Director-General of Ports and Lights |
| DGPCO | Director General Postings and Careers Officers |
| DGPCOR | Director General Postings and Careers Other Ranks |
| DGPGP | Director General Personnel Generation Policy |
| DGR | Director of Graves Registration |
| DGR & E | Director of Graves Registration and Enquiries |
| DGRC | Director General (Reserves and Cadets) |
| DGRD | Director General of Research & Development |
| DGS | Director of General Stores |
| DGSP | Director General (Strategic Planning) |
| DGSP | Director General Strategic Planning |
| DGSR | Director-General of Shipbuilding and Repairs |
| DGSS | Director-General of Supply Services |
| DGTP | Director-General of Tank Production |
| DGW | Director-General of Works |
| DGW & E | Director-General of Welfare and Education |
| DGWP | Director-General of Weapons and Instruments Production |
| DH | Depot Hussars |
| DH | Deck Hand |
| DH | Director of Hygiene |
| DH(No) | His/Her Majesty's Canadian Ship " Scotian", Base Files |
| DHCA | Director of Civil Aviation |
| DHD | Director of Harbour Defence |
| DHD | Deck Hand |
| DHFS | Defence Helicopter Flying School |
| DHGMR | Drill Hall Guarding Maisonneuve Regiment |
| DHH | Directorate of History and Heritage |
| DHist | Director Historical Section |
| DHMD | District Headquarters Manning Depot OR Military District |
| DHO | Director of Health Operations |
| DHP | Director of Hydrogen Production |
| DHQCFC | District Headquarters Canadian Forestry Corps |
| DHQS | District Headquarters Staff |
| DHQSS | District Headquarters Subordinate Staff |
| DHR | The Dufferin and Haldimand Rifles Regiment of Canada |
| DHRD | Director Human Rights and Diversity |
| DHRIM | Directorate Human Resources Information Management. (The PeopleSoft people.) |
| DHS | Director of Historical Section |
| DI | Drill Instructor; or Daily Inspection (This was done every morning on equipment) |
| DI | Daily Inspection (Vehicle) |
| DI | Drill Instructor |
| DI | Dangerously Ill |
| DIB | "D" Infantry Battalion |
| DICASS | Directional Command Activated Sonobouy System. |
| DID | Detail issue depot |
| DID | Detail Issue Depot (Royal Canadian Army Service Corps) |
| DID | Detail Issue Depot |
| DiedofW | Died of Wounds |
| Diem | Day |
| Diet | Dietician |
| DIFAR | Directional Frequency Analisys and Recording. |
| DIHRS | Defence Integrated Human Resource System |
| DIL | Dangerously Ill List |
| DIList | Dangerously Ill List |
| DIMSP | Directorate Information Management Strategic Planning |
| DIN | Defence Information Network |
| DIO | Director of Internment Operations |
| DIP | Director Intellectual Property |
| DIPC | Director International Plans Coordination |
| Dir | Director |
| Dir | Director (aiming circle) |
| DirGen | Director General |
| DIRMITRAIN | Director of Military Training |
| DIRPR | Director Information Resource Plans and Regulation |
| DIRU | Division Infantry Reinforcement Unit |
| dis | Discharged - released from the military service, or from a hospital |
| DIS | Division Intelligence Section |
| DIS | Discharged |
| DIS | Diretor of Investigation and Statistics |
| DIS pt | Dispersal point |
| DISB | Disbanded |
| disch | Discharged |
| Discip | Disciplinarian |
| Disemb | Disembarked |
| DISO | Defence Information Services Organization |
| DISP | Disposal point |
| DIST | District |
| DIST | District |
| Dist R | Distant Reconnaissance |
| DistEngrs | District Engineers |
| Distr | District |
| DIT | Director Individual Training |
| DIV | Division or divisional |
| Div | Division |
| Div | Divisional Ammunition Column |
| Div | Division or Divisional - unit of approximately 12,000 men commanded by a major-general |
| Div | Divisional |
| DIV | Division or Divisional |
| Div. Recce. Regt. | Divisional Reconnaissance Regiment (Div Recce Regt) |
| Div(nl) | Division(al) |
| DivBrPl(Tp) | Divisional Bridge Platoon (Troop) |
| DivSig | Divisional Signal(s) (Company) |
| DivStr | Divisional Strength |
| DIWT | Director of Inland Water Transport Service |
| DJAG | Deputy Judge Advocate General |
| DJAG | Deputy Judge Advocate-General |
| DKIM | Director Knowledge and Information Management |
| DL | Distributed Learning |
| DL | Dead Load |
| DL Ry | Director of Light Railways |
| DlabTech | Dental Laboratory Technician |
| DLADRCOC | Division Light Aid Detachment, Royal Canadian Ordnance Corps |
| DLBM/FOOD S | S Director Logistics Business Management/Food Services |
| DLBM/TM | Director Logistics Business Management/Transportation Management |
| DLCO | Deck Landing Control Officer |
| DLI | The Durham Light Infantry Regiment |
| DLI | Durham Light Infantry |
| DLI | Durham Light Infantry |
| DLOY | Duke of Lancaster's Own Yeomanry |
| DLP | Director of Electrical Personnel |
| DLPDPS | Director Learning and Professional Development Programs and Services |
| DLPDSP | Director Learning and Professional Development Strategies and Policies |
| DLRPP | Director Labour Relations Policies and Programs |
| DLS | Dominion Land Surveyor |
| DM | Deputy Minister |
| DM | Driver of Mechanized Transport |
| DM | Defence Medal |
| DM | Light Mine Layer (High Speed) (U.S.) |
| DM | Deputy Minister |
| DM | Driver Mechanic |
| DM(A) | Deputy Minister (Air) |
| DM(N) | Deputy Minister (Naval) |
| DM&A | Director(ate) of Mechanization and Artillery |
| DMASP | Director Materiel Acquisition and Support Programme |
| DMC | Defence Management Committee |
| DMC | Director of Military Cooperation |
| DMCARM | Director Military Careers Administration and Resource Management |
| DME | Distance Measuring Equipment |
| DME | Director of Military Engineering |
| DME | Director of Military Engineering |
| DMech | Driver Mechanic |
| DMFS | Directorate Military Family Services |
| DMG | Deputy Military Governor |
| DMGO | Deputy Master General of Ordnance |
| DMH | Dartmouth Military Hospital |
| DMHRCAMC | Debert Military Hospital, Royal Canadian Army Medical Corps |
| DMHRCAMC | Dundurn Military Hospital, Royal Canadian Army Medical Corps |
| DMI | Director of Military Intelligence |
| DMI | Director Military Intelligence |
| DMI | Director of Military Intelligence |
| Dmin | Deputy Minister |
| DML | Demolition |
| DML | Demolition |
| DMM | Director of Mechanical Maintenane |
| DMMD | Director Materiel Management Distribution |
| Dmn | Draughtsman |
| DMNA | Director Manning and Naval Assistant |
| DmnAE | Draughtsman Aeronautical Engineering |
| DmnCE | Draughtsman Construction Engineering |
| DmnGA | Draughtsman Graphic Arts |
| DMO | Director of Military Operations |
| DMO | Director(ate) of Military Operations |
| DMO | Director of Military Operations |
| DMO & P | Director of Military Operations and Plans |
| DMO&I | Director(ate) of Military Operations and Intelligence |
| DMO&P | Director(ate) of Military Operations and Planning |
| DMPD | Director, Management Policy Development |
| DMPP | Director Materiel Policy and Procedures |
| DMR | Die Middellandse Regiment |
| Dmr | Drummer |
| DMR | Drummer |
| dmr | Diameter |
| DMRD | Director of Medical Research and Development |
| DMS | Director of Medical Services |
| DMS | Director of Merchant Seaman |
| DMS | Director of Medical Services |
| DMS | Mine Sweeper (High Speed) (U.S.) |
| DMS | Driver Mechanics School |
| DMS | Department of Munitions and Supply |
| DMS | Driver Maintenance Staff |
| DMS | Director of Medical Services or Driver Mechanical School |
| DMS(Air) | Director of Medical Services (Air) |
| DMT | Director of Military Training |
| DMT | Director(ate) of Military Training |
| DMT | District Mounted Troops |
| DMT | Director of Military Training |
| DMT&SD | Directorate of Military Training and Staff Duties |
| DNA | Director of Naval Accounts |
| DNA | Director of Naval Appropriations |
| DNC | Director Naval Construction |
| DNC | Director of Naval Communications (U.S.) |
| DNCO | Duty Not Carried Out; or Did Not Complete Operation |
| DNCSEAC | Deputy Naval Commander South East Asia Command |
| DNCXF | Deputy Naval Commander Expeditionary Force |
| DND | Department of National Defence |
| DNE | Director Naval Education |
| DNES | Director of Naval Engineering Service |
| DNHS | Director of the Naval Historical Section |
| DNI | Director of Naval Intelligence |
| DNI | Director Naval Information |
| DNI | Director of Naval Intelligence & Trade |
| DNI and P | Director of Naval Intelligence and Plans |
| DNK | Date Not Known |
| DnkyMn | Donkeyman |
| DNLO | Dutch Naval Liaison Officer |
| DNO | Director Naval Ordinance |
| DNO | Director of naval Ordnance (Torpedoes Mines) |
| DNO | Destroyer Navigating Officer |
| DNO | Director of Operations (Naval-Co-operation) |
| DNOT | Director of Naval Operations and Training |
| DNP | Director of Naval Personnel |
| DNPA | Director of Naval Pay Accounting |
| DNR | Director of Naval Reserves |
| DNS | Director of Naval Stores |
| DNS | Director of Naval Services |
| DNS | Dragoons |
| DNS | Dragoons |
| DNSO | Deputy Naval Store Officer |
| DNT | Director of Naval Training |
| DO | Duty Officer; or Daily Order |
| DO | Dental Officer |
| DO | Duty Officer |
| DO | Daily Order |
| DO | Daily Order (Of a Unit) - administration orders issued to mark personnel changes of a unit (transfers, hospitalizations, etc.) |
| DO | Daily Order (Same as Part II Orders) |
| DO | District Orders |
| DO | Drill Order or Daily Order or Duty Officer |
| DOB | Date of Birth; or Deployed Operating Base |
| DOB | Date of Birth |
| DOC | District Officer Commanding |
| DOC | Died of Other Causes |
| DOC | Driver Operation Course |
| DOC | Docks Operating Company |
| DOCA | Director of Overseas Civil Aviation |
| DOCKS OP COY | Docks Operating Company |
| DOCO | Drafting Officer Combined Operations |
| DOD | Director Operations Division |
| DOD | Died of Disease |
| DODY | Died on Duty |
| DOE | Duration of emergency |
| DOE | Duration of Emergency |
| DOF | Director of Ordnance Factories |
| Dof P | Director of Plans |
| DofCornLI | Duke of Cornwall Light Infantry |
| DofLancsOY | Duke of Lancashire's Own Yeomanry |
| DofP | Director of Plans |
| DOFP | Divisional Ordnance Field Park, Royal Canadian Ordnance Corps |
| DofPR | Director of Public Relations (Air) |
| DofPR | Director of Public Relations (Army) |
| DofT | Director of Trade |
| DofT&M | Director(ate) of Transport and Movements |
| DofUERE | Director of Underwater Experimental Research Establishment |
| DofW | Died of Wounds - official cause of death |
| DofW | Duration of War |
| Dog | The Dogra Regiment |
| DOH | Dominion Orthopaedic Hospital (Toronto) |
| DOL | Director Official Languages |
| DOL Yeo | The Duke of Lancaster's Own Yeomanry Regiment |
| DomAff | Dominion Affairs |
| Dominion | High Commissioner for Canada in the United Kingdom (Address Used in Telegrams) |
| DomOrthHosp | Dominion Orthopaedic Hospital (Toronto) |
| DONC | Director of Operations (Naval Co-operations) |
| DOO | Director of Operations (Overseas) |
| DoO&R | Director of Organization & Recruiting |
| DOR | Director of Operational Research |
| DOR | Director of Operational Requirements |
| DORA | Defence of the Realm Act |
| DORA | Defence of the Realm Act |
| DORE | District Office, Royal Engineers |
| DOrg | Director(ate) of Organization |
| DOrg | Director of Organization |
| DORSET | The Dorsetshire Regiment |
| DORSET | The Dorsetshire Regiment |
| DORSET. | Dorset(shire) |
| DorsetR | Dorset Regiment |
| DorsetY | Dorset Yeomanry |
| DOS | Director Ordnance Services |
| DOS | Director of Ordnance Service |
| DOS SJS | SJS Director of Staff, Strategic Joint Staff |
| DOS(A) | Director of Ordnance Services (Administration) |
| DOS(GS) | Director of Ordnance Services (General Stores) |
| DOS(TS) | Director of Ordnance Services (Technical Stores) |
| DOSI | Director of Operational Services and Intelligence |
| DOT | Director of Operational Training |
| DOTP | Dental Officer Training Plan |
| DoW | Death or wounded |
| DOW | Duration of war |
| DOW | Died of Wounds |
| DOW | Died of Wounds |
| DOWN | County Down |
| DP | Delivery point |
| DP | Development Period; officer and NCM careers are divided into Developmental Periods |
| DP | Defence Platoon |
| DP | Developmental Period |
| DP | District Paymaster |
| DP | Delivery Point or Dispersal Point or Director of Postings |
| DPA | Director of Procurement (Aircraft) |
| DPB | Defence Purchasing Board |
| DPCRCASC | Division Petrol Company, Royal Canadian Army Service Corps |
| DPCRCASC | Depot Pacific Command, Royal Canadian Army Service Corps |
| DPD | Director of Plans Division |
| DPDT | Director Plans, Doctrine and Training |
| DPE | Directorate of Physical Education |
| DPE | Director of Procurement (Equipment) (Air) |
| DPED | Director Professional Education and Development |
| DPersServ | Director(ate) of Personal Services |
| DPET | Director of Pre-Entry Training |
| DPFL | Directorate Protocol and Foreign Liaison |
| DPGRCOC | Detachment Proving Grounds, Royal Canadian Ordnance Corps |
| DPI | District Pay Instruction |
| DPM | Deputy Provost Marshal |
| DPO | Director of Plans and Operations (Air) |
| Dpo | Depot |
| DPofG | Defended Port of Gaspe |
| DPofS | Defended Port of Shelburne |
| DPPO | Deputy Press and Publicity Officer |
| DPR | Director of Postings and Records (Air) |
| DPR | Director of Personnel Records |
| DPR | Diretor of Public Relations |
| DPS | Director of Personnel Selection |
| DPS | Director of Personal Services |
| DPs | Delivery Points |
| DPSD | Deputy Drector of Staff Duties |
| DPSD (W) | Deputy Director of Staff Duties (Weapons) |
| DPSE | District Paymaster Sergeant |
| DPSS | Director of Printing and Stationary Services |
| DPTE | Drummer Private |
| DPW | Director, Prisoners of War in Canada |
| DPW | Director of Prisoners of War |
| DQ | Director of Quartering |
| DQA | Director Quality Assurance |
| DQMG | Deputy Quartermaster General |
| DQMG | Deputy Quarter-Master Geberak |
| DQOL | Director Quality of Life |
| DQS | Director(ate) of Quartermaster General Services |
| DR | Despatch rider or motor-cyclist |
| Dr | Driver |
| DR | Director Records |
| DR | Despatch Rider or motor cyclist |
| DR | Dead Reckoning (U.S.) |
| DR | Officer In Charge Records |
| DR | Dresser |
| DR | Director of Remounts or Driver or Despatch Rider or Dead reckoning |
| DR Compass | Distant-reading Compass (German) |
| DR(WD) | Director of Records (War Diaries) |
| DRA | Director of Royal Artillery |
| DRAE | Director of Royal Aircraft Establishment |
| DRAE | Director of Royal Aircraft Establishment |
| DraftingEO | Drafting Engineer Officer |
| DRB | Division Recce Battalion |
| DRC | District Rest Camp |
| DRC | District Recruiting Company |
| DRD | District Recruiting Detachment |
| DRD | Director Reserve Divisions |
| DRD&MRU | District Recruiting Detachment & Mobile Recruiting Units |
| DREE | Director of Research and Experimental Establishment |
| Dresser | Dresser of Wounds |
| DRET | Directorate of Recruiting, Education and Training |
| DRI | Driver |
| DrillCoy | Drilling Company |
| DRLS | Despatch rider letter service |
| DRLS | Despatch Rider Letter Service |
| DRM | Director of Reuniting and Mobilisation or Director of Raw Materials |
| DRO | District Record Officer |
| DRO | District Routine Orders |
| DRO | Daily Routine Orders |
| DRO | Divisional Routing Order |
| DRO | Daily Routine Order or Orders |
| DROCAD | Divisional Routine Orders Canadian Armed Division |
| DRP | Diretor of Radio Production |
| DRPATAA&TS | Detention Rooms Port Arthur the Armouries Administration & Training Staff |
| Drs | District Recruiting Services |
| DRS | District Recruiting Staff |
| DRS | Divisional Rest Station |
| DRS(LC)RCCS | Despatch Rider Section (Light Car) Royal Canadian Corps of Signals |
| DRSE | Dresser |
| DRSO | Daily Range Standing Order |
| DRTD | District Recruit Training Depot |
| DRU | Drummer |
| DRUM MAJ | Drum Major |
| DRV | Driver |
| DS | Directing Staff |
| DS | Dressing station |
| DS | Dutch Ship |
| DS | Dressing Station |
| DS | Dressing Station or Directing Staff |
| DS | Dental Surgery or Director of Signals |
| DS"Z"F | Dental Section "Z" Force |
| DS(Records) | Discharge Section (Records) |
| DS&TO | District Supply & Transport Officer |
| DSA | Director Senior Appointments |
| DSA | Director of Supply Administration (Air) |
| DSA | Draw Subsistence Allowance |
| DSANF | Director South African Naval Forces |
| DSB | Director Shipbuilding |
| DSC | District Shipyard Controller |
| DSC | Distinguished Service Cross |
| DSC | Divisional Signal Company or Distinguished Service Cross |
| DSC(L) | Director of Small Craft (Levant) |
| DSCACOW/SRCOC | Divisional Section Canadian Armoured Corps Ordinance Workshop, Royal Canadian Ordnance Corps |
| DSCDS | Defence Subject Classification and Disposition System |
| DSCES | Director Strategic Communications and Executive Services |
| DSCO | Director Supply Chain Operations |
| DSCR | Department of Soldiers Civil Re-establishment |
| DSCRCASC | Division Supply Column, Royal Canadian Army Service Corps |
| DSD | District Sub-Depot |
| DSD | Director Signals Division |
| DSD | Director(ate) of Staff Duties |
| DSD | Desirable Sailing Date |
| DSD | Director of Staff Duties |
| DSD (W) | Director of Staff Duties (Weapons) |
| DSDF | Director of Seaward Defence Force |
| DSEI | Directorate of Special Examinations and Inquiries |
| DSG | Deputy Surgeon General |
| DSISCIC | District Security Intelligence Section, Canadian Intelligence Corps |
| DSM | Distinguished Service medal |
| DSM | Drill Sergeant Major |
| DSM | Distinguished Service Medal |
| DSM | Drill Sergeant Major |
| DSM | Distinguished Service Medal or Drill Sergeant Major |
| DSM | Director of Servicing and Maintenance |
| DSMD | District Staff Military District |
| DSO | Distinguished Service Order |
| DSO | Companion of the Distinguished Service Order |
| DSO | District Supply Officer |
| DSO | Duty Signal Officer |
| DSO | District School Orders |
| DSO | Distinguished Service Order |
| DSO | Distinguished Service Order |
| DSP | Director of Seaman Personnel |
| DSPC | Divisional Signals Pacific Command |
| DSPD | Deputy Superintendent Pembroke Dock |
| DSQ | Dockyard Sick Quarters |
| DSR | Director of Ship Repairs |
| DSR | Director of Scientific Research |
| DSRC | Division Section Reception Camp |
| DSRCCS | District Signals, Royal Canadian Corps of Signals |
| DSS | Director of Special Services |
| DSSD | Director of Supply Staff Duties (Air) |
| DSSRCOC | District Stores Section, Royal Canadian Ordnance Corps |
| DST | Director of Supplies and Transport |
| DST | Director(ate) of Supply and Transport |
| DST | Director of Supplies and Transport |
| DSTO(X) | Divisional Sea Transport Officer, Alexandria |
| DTC | Discharge Transit Centre |
| DTD | Directorate of Technical Development; or Director of Technical Development (Air Ministry) |
| DTD | Director of Trade Division |
| DTD | Director of Tank Design |
| DTEO | Defence Test & Evaluation Organization |
| DTEP | Director Training and Education Policy |
| DTG | Date Time Group DEU Distinctive Environmental Uniform |
| DTM | Director of Technical Maintenance (Air) |
| DTMA | Director of Technical and Military Administration |
| DTMS | Defence Terminology Management System |
| DTN | Defence Teleprinter Network |
| DTNA | Director Training and Naval Assistant |
| DTO | Director of Technical Division (Naval) |
| DTO | Director of Operational Training |
| DTPG | Draw Trades Pay Group |
| DTPR | Director of Training Plans and Requirements (Air) |
| DTR | Director(ate) of Technical Research |
| DTSES | Directorate Telecommunications and Spectrum Engineering and Support |
| DTSS | Dockyard Tower Signal Station |
| DTT | Director of Technical Training (Air) |
| DTT | Director of Technical Training |
| DTTC | Dental Technical Training Centre |
| DU | Discrimination Unit |
| DUAS | Durham University Air Squadron |
| Dukes | The Duke of Edinburgh's Own Rifles Regiment |
| DUKW | Duck wagon (An amphibious six-wheeled vehicle of six-ton capacity) |
| DUMFRS. | Dumfriesshire |
| DUNB. | Dunbartonshire |
| DUNDEE | Dundee |
| DURH LI | Durham Light Infantry |
| DURHAM | Durham |
| DurhLI | Durham Light Infantry |
| DUS | Deputy Under-Secretary of State |
| DV | Diver |
| DVA | Department of Veteran Affairs |
| DVA | Department of Veterans Affairs |
| DVGofC | Detachment Veterans Guard of Canada |
| DVR | Driver |
| Dvr | Driver - designation or rank of a soldier who drives vehicles |
| DVR | Driver |
| DvrSigs | Driver Signals |
| DW | Director of Works |
| DW | Director of Works or Duration of War |
| DWA | Director(ate) of Works and Accommodation |
| DWAAF | Director of the Women's Auxilliary Air Force |
| DWAN | Defence Wide Area Network |
| DWB | Director of Works and Building |
| DWC | Director(ate) of Works and Construction |
| DWD | Director of Welding Development |
| DWI | Directional Wireless Installation (Magnetic Minesweepers) |
| DWO | Director of War Organisation |
| DWR | The Duke of Wellington's Regiment (West Riding) |
| DWR | Duke of Wellington's Regiment (West Riding) |
| DWR | Director of Weapons and Tactics |
| DWR | The Duke of Wellington's Regiment |
| DWS | Director of Women's Service |
| DWS | Director of Warlike Stores |
| DWT | Director of Warfare and Training |
| DWTF | District Welfare Trust Fund |
| DWTO | District Weapons Training Officer |
| DWV | Diretor of Weapons and Vehicles |
| DY | The Derbyshire Yeaomanry Regiment |
| DY | Derbyshire Yeomanry |
| DYRCH | 17th Duke of York's Royal Canadian Hussars |
| DZ | Dropping zone |
| DZ | Drop Zone |
| E | East |
| E | English (Nationality) or Echelon |
| E & M | Excavation and Maintenance or Electical and Mechanical |
| E Div | Electrical |
| E L Cr | Engineer Lieutenant-Commander |
| E LAN | East Lancashire Regiment |
| E LAN R | East Lancashire Regiment |
| E Lan R (ELnc) | The East Lancashire Regiment |
| E RIDING YEO | East Riding Yeomanry (TA) |
| E RIDING YEO | East Riding Yeomanry |
| E YORKS | East Yorkshire Regiment (Duke or York's Own) |
| E YORKS | The East Yorkshire Regiment (The Duke of York's Own) |
| E Yorks (Eyks) | The East Yorkshire Regiment (The Duke of York's Own) |
| E-in-C | Engineer-in-Chief |
| E-M2 | Officers of the Merchant Marine Reserve holding engineering licenses in the Merchant Marine. |
| E-V (G) | Officers of the Volunteer Reserve appointed to the line for general service in engineering duties. |
| E-V (RS)2 | Officers of the Volunteer Reserve who are experienced in electrical engineering appointed to the line for engineering duties. |
| E-V (S) | Officers of the Volunteer Reserve appointed to the line for special service in engineering duties. |
| E.LOTHIAN | East Lothian |
| E/R | Elevation/Range |
| E&M | Electrical and Mechanical |
| E&M (Coy) | Electrical and Mechanical (Company) |
| E&M COY | Electrical and Mechanical Company |
| E&RFTS | Elementary& Reserve Flying Training School |
| E&SCID | Eastern & Southern Commands Infantry Depot |
| E&WS | Electrical & Wireless School |
| EA | East Africa, East African or enemy aircraft |
| EA | East Africa |
| EA | Enemy Action |
| EA | Electrical Artificer |
| EA | Enemy Aircraft |
| EA | Air Electrical Technician |
| EA | Electrical Technician (Air) |
| EA | Emergency Aerodromes |
| EA | East Africa or African |
| EA,1c(or2c,3c,4c,5c) | Electrical Artificer, 1st Class (or 2nd, 3rd, 4th or 5th Class) |
| EA(No) | Distinguishing letters on files of Permanent Joint Board on Defence |
| EAAS | Empire Air Armament School |
| EAASC | East Africa Army Service Corps |
| EAC | Equipment Approvals Committee |
| EAC | Eastern Air Command |
| EAC | Equipment Assembly Company or East Africa Command |
| EACC | Enemy Alien Concentration Camp |
| EAF | East Africa Flight |
| EAFC | Empty Anti-Freeze Containers |
| EAM | Executive Assistant to the Honourable Minister |
| EAM/BMO | Electrical Anti-mining Base Maintenance Officer |
| EAMGO | Executive Assistant to the Master General of Ordnance |
| EANS | Empire Air Navigation School |
| EAOS | Elementary Air Observer School |
| EARS | Enemy Alien Receiving Station |
| EASSU | Enemy Aircraft Storage & Servicing Unit |
| EATS | Empire Air Training Scheme |
| EATS | Equipment Accounting Training School |
| EBSRVR | East Bengal State Railway Volunteer Rifles |
| EBTS | Elementary and Basic Training School (Coastal Command) |
| EC | Escadrille de Chasse (Small French Fighter Unit); or Engagement Controller (Bloodhound missile) |
| EC | Eastern Canada |
| EC | Educational Company |
| EC | Engineer Captain |
| ECA | European Civil Affairs |
| ECC | Equipment Configuration Code |
| ECC | Emergency Cooks Course |
| ECDU | Electronic Countermeasures Development Unit; or Engine Control Demonstration Unit |
| ECFS | Empire Central Flying School |
| ECH | Echelon |
| ECH | Echelon |
| ECI | Engineer Control Instructors ECM Electronic Countermeasures |
| ECMCourse | Electronics Countermeasures Course |
| ECr | Engineer Commander |
| ECS | Environmental Chiefs of Staff |
| ECT | Emergency Cookery Training |
| ECU | Electronic Countermeasures Unit |
| ED | Equivalency Database; or Environmental Directive |
| ED | Efficiency Decoration |
| ED | Equipment Depot |
| ED | Excused Duties |
| ED | Efficiency Decoration |
| ED & T | & T Exempt From Drill and Training |
| ED&T | Exempt From Drill and Training |
| EDC | Elementary Driving Corps |
| EDC | Extended Defence Commander |
| EDD | Equipment Disposal Unit |
| EdmFus | Edmonton Fusiliers |
| Edmn Fus | The Edmonton Fusiliers Regiment |
| Edmn R | The Edmonton Regiment |
| Edn. | Education |
| EDO | Education Objective |
| EDP | Emergency Defence Plan |
| EDR | Radar Display Room |
| EdServ | Educational Services |
| EDSRCASC | Echelon Division Supply, Royal Canadian Army Service Corps |
| EE | Electrical Engineer |
| EE | Exercise Eskimo |
| EEAD | Chief Examiner of Armament Design |
| EEF | Egyptian Expeditionary Force |
| EEF | Egyptian Expeditionary Force |
| EERCE | Experimental Establishment, Royal Canadian Engineers |
| EES | Eastern Examination Service |
| EF | Expeditionary force |
| EF | Eastern Fleet |
| EF | Edmonton Fusiliers |
| EF | Expeditionary Force or Elevation Finder |
| EFC | Expeditionary Forces Canteens |
| EFERCCS | Eastern Fortress Establishment, Royal Canadian Corps of Signals |
| EFI | Expeditionary Force Institutes |
| EFI | Expeditionary Forces Institutes |
| EFM | Expeditionary Force Message |
| EFR | The Eastern Frontier Rifles Regiment |
| EFS | Empire Flying School |
| EFTS | Elementary Flying Training School |
| EFTS | EFTS Elementary Flying Training School(s) |
| EG | For example |
| EG | For Example |
| EGM | Empire Gallantry Medal |
| EGS | Elementary Gliding School |
| EGSTech | Electrical Generating Systems Technician |
| EGSUP | Eastern Group Supply Council |
| EGTS | Elementary Glider Training School |
| EHU | Engineer Holding Unit |
| EI | Essential Industry |
| EIB | Explosive Incendiary Bomb |
| EinC | Engineer-in-Chief |
| EInC | Engineer-in-Chief Naval Service |
| EINLO | Royal Indian Naval Liaison Officer |
| EIS | Equipment Issue Scale |
| EISIS | East Indies Merchant Shipping Intelligence |
| EL | Air Artificer (Electrics) |
| EL | Embarkation Leave |
| EL | Electic Light |
| EL & W | Electric Light and Works |
| El L Cr | Electical Lieutenant-Commander |
| ElA/Lieut-Cdr | Electrical Acting Lieutenant-Commander |
| ELanR | East Lancashire regiment |
| ElCr | Electrical Commander |
| Elect | Electrician |
| ELG | Emergency Landing Ground |
| Elgins | The Elgin Regiment Regiment |
| ELINT | Electronic Intelligence |
| ElL | Electrical Lieutenant |
| ElLCr | Electrical Lieutenant Commander |
| ElMTech | Electro-Mechanical Technician |
| ELOC | Essential Level of Capability |
| ELOP | Electric Light Observation Post |
| ELOs | Electric Light Officers |
| ELS | Emergency Landing Strip |
| ElSL | Electrical Sub-Lieutenant |
| ELUS | English Language Units |
| EM | Electrician's Mate Use electrical tools and repair electrical equipment. Charge storage batteries. Wind armatures. Stand watch on main gyrocompass and in main control room of electrically driven ships. Repair telephone circuits. Apply first aid in case of |
| EM | Engineering Mechanic |
| EM | Electrical Mechanic |
| EM | Efficiency Medal |
| EM | Electrician's Mate |
| EM1c | Electrician's Mate, First Class |
| EM2c | Electrician's Mate, 2d Cl. |
| EM3c | Electrician's Mate, 3d Cl. |
| Emb | Embarked - went aboard ship for departure overseas; Canada to Britain or Canada to France |
| EMB | Embarked |
| EmbL | Embarkation Leave |
| EmbLve | Embarkation Leave |
| EMCS | Eastern Mediterranean Communication Flight |
| EME | Electrical Mechanical Engineer |
| EME | Electrical Mechanical Engineer |
| EMH | Edmunston Military Hospital |
| EMH | Esquimalt Military Hospital |
| EMHRCAMC | Edmonton Military Hospital, Royal Canadian Army Medical Corps |
| EMHRCAMC | Espanola Military Hospital, Royal Canadian Army Medical Corps |
| EMO | Embarkation Medical Officer |
| EMP | Employ, employed or employment |
| Emp | Employed |
| Emp | Employment |
| Emp. | Employment |
| Empl'd | Employed |
| EMUAS | East Midlands University Air Squadron |
| EN | Enemy |
| EN | Ensign |
| EN | Enemy |
| ENG | English |
| ENG | English |
| Engn | Engineman |
| ENGR | Engineer |
| ENGR | Engineer or Engineers |
| Engr. | Engineer |
| Engrs | Director of Engineer Services |
| Engrs | Engineers |
| Engrs. | Engineers |
| Enrg | Engineer |
| ENS | Ensign or Second Lieutenant |
| Ens | Ensign |
| ENS | Ensign |
| ENSA | Entertainment National Services Association |
| ENSA | Entertainments National Services Association |
| ENSA | Entertainments National Services Association |
| ent | Entitled |
| ENTL | Entitled |
| EO | Enabling Objective |
| EO | Engineer Officer |
| EO | Emergency Operations or Education Officer or Engineer Officer |
| EOD | Explosive Ordnance Disposal |
| EOFS | Engineer Officer French Ships |
| EOP | Engineer Officer Personnel (Naval) |
| EOR | Eastern Ontario Regiment |
| EORCE | Executive Officer, Royal Canadian Engineers |
| EORD | Eastern Ontario Regimental Depot |
| EORD | Eastern Ontario Regimental Depot -facility in England used to assemble men and to store and administer equipment and materials |
| EOWS | Elementary Observer Wireless School |
| EP | Equipment Park |
| EP | Employment Platoon |
| EP | Estimated Position |
| EP | Equipment Park |
| EPB | Exercise Polar Bear |
| EPZ | Enter Promotion Zone |
| Eqpm.Ass't | Equipment Assistant |
| EQPT | Equipment |
| EQPT | Equipment |
| EQPT O | Equipment Officer |
| Eqpt. | Equipment |
| Equipt(N) | Equipment Division (Naval) |
| ER | Engine Room Artificer |
| ER | Engineering Technician |
| ER | Elgin Regiment |
| ER | Essex Regiment |
| ERA | Engine Room Assistan |
| ERA,1c(or2c,3c,4c,5c) | Engine Room Artificer, 1st Class (or 2nd,3rd,4th or 5th Class) |
| ERA(A) | Engine Room Artificer (Apprentice) |
| ERO | Emergency Repair Officer |
| ERofYorkY | East Riding of Yorkshire Yeomanry |
| ERP | Emergency Response Plans |
| ERPT | Emergency Response Planning Team |
| ERRatings | Engine Room Ratings |
| ERS | Empire Radio School; or Engine Repair Section |
| ERS | Engine Repair Section |
| ERU | Engineer Reinforcement Unit |
| ERY | The East Riding Yeomanry Regiment |
| ERY | East Riding Yeomanry |
| ES | Emergency Service |
| ES&W | Engineer Services & Works |
| ES&WCoy | Engineer Survey and Works Company |
| ESBD | Engineer Stores Base Depot |
| ESCMFGHQ | Educational Services Central Mediterranean Force General Headquarters |
| ESD | Engineer Stores Depot |
| ESE | Engineer Stores Establishment |
| ESO | Embarkation staff officer |
| ESO | Embarkation Staff Officer |
| ESR | Engineer Support Regiment |
| ESR | The Essex Scottish Regiment |
| ESR | Essex Scottish Regiment |
| ESSEX | Essex Regiment |
| Essex (Esx) | The Essex Regiment |
| EssexR | Essex Regiment |
| EssexYeo | Essex Yeomanry |
| ESSRCE | Engineer Stores Section, Royal Canadian Engineers |
| EST | Establish, established or establishment |
| Est | Estimates |
| Est | Establish, established or establishment |
| EST | Established or Establishment |
| Est. | Establishment |
| Estab | Establishment |
| ESTB | Established |
| ESurrR | East Surrey Regiment |
| ESusx | The East Sussex Regiment |
| ET | Electrical Technician |
| ETA | Estimated Time of Arrival |
| ETA | Estimated / Expected Time of Arrival (U.S.) |
| ETC | And so on or and the rest |
| ETC | Embarkation Transit Camp |
| ETD | Expected Time of Departure (U.S.) |
| ETech | Electrical Technician |
| ETech(A) | Electrical Technician (Air) |
| ETH | Compressed Earth |
| ETO | European Theatre of Operations |
| ETOUSA | European Theatre of Operations, U. S. A. |
| ETP | Estimated Time of Departure (U.S.) |
| ETPS | Empire Test Pilots School |
| ETQMS | Engineer Technical Quartermaster Sergeant |
| ETU | Embarkation Transit Unit |
| EU | Equipment Unit |
| EU | Entertainment Unit |
| EUAS | Edinburgh University Air Squadron |
| EVA | Engineer Vice-Admiral |
| EVAC | Evacuate, evacuated or evacuation |
| Evac | Evacuated |
| EVAC | Evacuate |
| Evac. | Evacuation |
| EVD | Evaded Capture |
| EW | Electronic Warfare; or Early Warning |
| EWAU | Electronic Ware fare Avionics Unit |
| EWE&TU | Electronic Ware fare Experimental & Training Unit |
| EWS | Emergency Water Supply |
| EX | Exercise ; or Executive Group |
| Ex | Expeditionary |
| EX | Exercise |
| EXCL | Exclude, excluded, excluding or exclusive |
| EXCL | Exclude or Excluded or Exclusive |
| EXFCECAN | Expeditionary Force Canteen |
| Exp | Expeditionary |
| EXP | Exemplary |
| Exptl | Experimental |
| Ext Aff | External Affairs |
| External | Canadian Department of External Affairs (Address used in telegrams) |
| ExVes | Examination Vessels |
| EYorkR | East Yorkshire Regiment |
| F | Fighter |
| F | Fireman Fire and tend boilers. Operate, adjust and repair pumps. |
| F | Fighting or Fighter (plane) |
| F & E | & E Furniture and Effects |
| F I DS/U | I DS/U Fighter Interception Development Squadron/Unit |
| F I U | I U Fighter Interception Unit |
| F of S | Factor of safety |
| F Sgt | Flight Sergeant |
| F SP | Flash spotting |
| F Sp | Flash Spotting |
| F W | w Feldwebel/Focke Wulfe |
| F-BFTS | France-Belgium Flying Training Unit |
| F. AMB | Field Ambulance |
| F.S. | Field Security |
| F(A)SCRCE | Field (Air) Survey Company, Royal Canadian Engineers |
| F/ | Flight |
| F/C | Fire Control (Gunnery) |
| F/C | Flight Commander |
| F/E | Flight Engineer |
| F/FS | French Ship Manned by Fighting French |
| F/L | Flight Lieutenant |
| F/Lt | Flight Lieutenant |
| F/O | Flying Officer |
| F/R | Fighter Reconnaissance |
| F/S | Flight Sergeant |
| F&E | Furniture and Effects |
| F&G | France and Germany |
| F1A | Fitter I (Airframes) |
| F1c | Fireman, First Class |
| F1E | Fitter I (Engines) |
| F2A | Fitter II (Airframes) |
| F2c | Fireman, Second Class |
| F2E | Fitter II (Engines) |
| F3c | Fireman, Third Class |
| FA | Field Artillery |
| FA | Field Ambulance |
| FA | Field Artillery |
| FA | Financial Adviser, Joint Air Training Plan (Air) |
| FA | Field Ambulance or Field Artillery f Financial Advisor or Fixed Ammunition |
| FA/SO | Fleet Anti-Submarine Officer |
| FAA | Fleet Air Arm (Naval Aviation) or Financial Administration Act |
| FAA | Fleet Air Arm |
| FAA | Fleet Air Arm |
| FAB | Field Artillery Bridge |
| FAC | Forward Air Controller |
| FACRCAMC | Field Ambulance Charlottetown, Royal Canadian Army Medical Corps |
| FAD | Field Ambulance Details |
| FAD | Field Ammunition Dump |
| FAD(D)RCASC | Field Ambulance Details (Division) Royal Canadian Army Service Corps |
| FADRCAMC | Field Ambulance Detachments, Royal Canadian Army Medical Corps |
| FAE | Fitter Aero Engines |
| FAE | Fleet Adviser of Education |
| FAGS | Fleet Aerial Gunners School |
| FAHRCAMC | Field Ambulance Halifax, Royal Canadian Army Medical Corps |
| FAM | Financial Administration Manual |
| Famb | Field Ambulance |
| FANY | First Aid Nursing Yeomanry |
| FANYC | First Aid Nursing Yeomanry Corps |
| FAO | Fleet Accountant Officer |
| FAP | First Aid Post |
| FAP | Farrier Sergeant |
| FAP | First Aid Post |
| FAP | For All Purpose |
| FAP | First Aid Post |
| FAPHRCAMC | Field Ambulance Point Hawkesbury, Royal Canadian Army Medical Corps |
| FAR | Farrier |
| FARCAMC | Field Ambulance Royal Canadian Army Medical Corps |
| Farr | Farrier |
| FAS | First Army Signals |
| FAS | Forward Area Sight |
| FASL | Forward Air Support Link |
| FAT | Field Artillery Tractor |
| FATO | Fleet Air Arm Technical Officer |
| FATU | Flight Affiliation Training Unit; or Fighter Armament Training Unit |
| FAVO | Fleet Aviation Officer |
| FAVO | Fleet Aviation Officer |
| FAW/SSRCOC | Field Artillery Workshop Section Royal Canadian Ordnance Corps |
| FB | Fire Base |
| FB | Field Branch or Flying Boat |
| FB&JW | Forest Bush & Jungle Warfare |
| FBDF | Flying Boat Development Flight |
| FBE | Folding boat equipment |
| FBE | Folding Bridge Equipment |
| FBE | Floating boat equipment |
| FBE | Folding Boat Equipment |
| FBO | Fixed Base Operations |
| FBRCA | Field Battery, Royal Canadian Artillery |
| FBRCACASF | Field Brigade, Royal Canadian Artillery, Canadian Active Service Force |
| FBRCASC | Field Bakery, Royal Canadian Army Service Corps |
| FBS | Flying Boat School |
| FBSO | Fleet Bomb Safety Officer |
| FBSU | Flying Boat Servicing Unit |
| FC | Ferry Control/Fighter Command/Flying Control |
| FC | The First City Regiment |
| FC | Fire Controlman Stow, inspect and repair fire control instruments. Take charge of fire control equipment. Know electricity - A.C. and D.C. Man fire control stations. |
| FC | Ferry Commands |
| FC | Fire Controlman |
| FC | Flag Captain |
| FC | Foot Constable or Frontier Constabulary or Fighter Command or Fire Commander |
| FC"Z"F | Fire Command "Z" Force |
| FC1c | Fire Controlman, First Class |
| FC2c | Fire Controlman, Second Class |
| FC3c | Fire Controlman, Third Class |
| FCAHQPRCE | First Canadian Army Headquarters Platoon, Royal Canadian Engineers |
| FCAIOPCIC | First Canadian Army Intelligence Officers Pool, Canadian Intelligence Corps |
| FCAIS | First Canadian Army Intelligence School |
| FCASIGPHQ | First Canadian Army Service Increment Group Headquarters |
| FCASS | First Canadian Army Sniping School |
| FCATCCRCASC | First Canadian Army Troops Composite Company, Royal Canadian Army Service Corps |
| FCATRTC | First Canadian Army Troops Reinforcement Transit Camp |
| FCATW/SRCOC | First Canadian Army Troops Workshop, Royal Canadian Ordnance Corps |
| FCC | Fleet Constructor Officer |
| FCCP | Forage Caps Concert Panty |
| FCCRS | Fighter Command Control & Reporting School |
| FCCS/F | Fighter Command Communication Squadron/Flight |
| FCCU | Fighter Control Cooperation Unit |
| FCDCASS | "Forage Caps" Detachment Canadian Auxiliary Services Section |
| FCIRS/F | Fighter Command Instrument Rating Squadron/Flight |
| FCITF/S | Fighter Command Instrument Training Flight .Squadron |
| FCMPC | Fighter Command Missile Practice Camp |
| FCO | Field Cash Office |
| FCP | Family Care Plan |
| FCPU | Ferry Command Preparation Unit |
| FCR | Fire Controlman R Same duties as fire controlman and in addition, range finder operator. |
| FCRCASC | Fortress Company, Canadian Active Service Force |
| FCRCECASF | Field Company Royal Canadian Engineers, Canadian Active Service Force |
| FCRS | Fighter Command Radar School |
| FCS | Facility Checking Squadron |
| FCS | Fighter Command School |
| FCS | Fire Controlman S Submarine fire controlman. |
| FCST | Forecast (U.S.) |
| FCtlmn | Fire Controlman |
| FCTU | Fighter Command Trials Unit |
| FD | Field |
| FD | Fuel Depots |
| FD | Field |
| FD BCHY | Field butchery and cold storage depot |
| FD BKY | Field bakery |
| FD BTD | Field Brigade |
| FD BTY | Field Battery |
| FD COY | Field Company |
| FD ENGR | Engr Field Engineer |
| FD ENGR | Field Engineer |
| FD HYG SEC | Field Hygiene Section |
| FD IMP | Field Imprisonment |
| Fd Pk Coy | Field (Park) Company |
| FD PK Coy | Field Park Company |
| Fd Pk Sqn (Tp) | Field (Park) Squadron (Troop) |
| Fd Sqn | Field Squadron |
| Fd Svy Coy | Field Survey Company |
| Fd. | Field |
| Fd. Coy. | Field Company (Fd Coy) |
| Fd. Ord. | Field Ordnance (Fd Ord) |
| Fd. Ord. Depot | Field Ordnance Depot (Fd Ord Depot) |
| Fd. Pk. Coy. | Field Park Company (Fd Pk Coy) |
| Fd. Regt. Coy. | Field Regiment Company (Fd Regt Coy) |
| Fd. Svy. Coy. | Field Survey Company (Fd Svy Coy) |
| FdAmb | Field Ambulance |
| FDB | Fighter Dive Bomb |
| FDC | Fighter Direction Centre |
| FDE | Final Discharge Establishment |
| FdeMR | Fusiliers de Mont Royal (French only) |
| FDF | Fighter Defence Unit |
| FDL | Ford ward defended locality |
| FDL | Fusiliers de Mont Royal |
| FDL | Forward Defended Locality |
| FDO | Fusiliers de Sherbrooke |
| FDO | Fleet Dental Officer |
| FDS | Field Dressing Station |
| FDS | Field Dressing Station |
| FDS RAC | Forward Delivery Squadron, Royal Armoured Corps |
| FDT | Fighter Direction Tenders |
| FDT | Fire Direction Table |
| FduSL | Fusiliers du St. Laurent |
| FE | Far East |
| FE | Field Engineer |
| FE | Financial Encumbrance |
| FE | Far East or Flight Engineer |
| FE&MCRCE | Fortress E. & M. Company Royal Canadian Engineers |
| FEAF | Far East Air Force |
| FEAFES | Far East Air Force Examination Squadron |
| FEAR | Far East Air Force |
| FEBA | Forward Edge Battle Area |
| FECA | Force Eskimo C.A. |
| FECEF | Far East Casualty Evacuation Unit |
| FEE | Fighter Experimental Establishment |
| FEE OP | Op Field Engineer Equipment |
| FEFEW | Far East Flying Boat Wing |
| FEO | Fire Effects Observer/Officer |
| FEO | Fleet Education Officer |
| FEO | Fleet Engineer Officer |
| FEPOW | Far East Prisoner of War |
| FERMANAGH | County Fermanagh |
| Fervour | Government of Canada Hong Kong (Address used in telegrams) |
| FES | Flight Engineer School; or Field Engineering Squadron |
| FES | Field Educational Section |
| FES | Field Experimental Station |
| FES | Flight Engineer School |
| FETDU | Far East Tactical Development Unit |
| FETS | Far East Training Squadron |
| FETW | Far East Training Wing |
| FF | Field force or fire fighting |
| FF | Fire fighting or field force |
| FF | Fighter Flight/Ferry Flight/Free French |
| FF | Field Force |
| FF | Fire Fighter |
| FF | Fire Fighting |
| FF | Frontier Force or Field Force or Fire Fighting or Fleet Fighter |
| FF PFMP | PFMP Fire Fighters Physical Fitness Maintenance Program |
| FF RIF | Frontier Force Rifles |
| FF YEO | Fife and Forfar Yeomanry (TA) |
| FFAF | Free French Air Force |
| FFC | Field Force Consumption |
| FFDPF | Free French Desert Patrol Flight |
| FFE | Fire for Effect |
| FFFF | Free French Fighter Flight |
| FFH | Frigate, Helicopter. A Frigate type vessel with Helicopter(s) as its primary armament |
| FFH | Frigate, Helicopter Equipped |
| FFI | Free From Infection |
| FFI | French Forces of the Interior |
| FFK | Fort Frontenac Kingston |
| FFP | Final Firing Position |
| FFR | Fleet Fighter Reconnaisance |
| FFReg | The Frontier Force Regiment |
| FFRif | The Frontier Force Rifles Regiment |
| FFY | The Fife and Forfar Yeomanry Regiment |
| FFY | Fife and Forfar Yeomanry |
| FG | Frigate |
| FG OFF | Flying Officer |
| FGCM | Field general court-martial |
| FGCM | Field General Court Martial |
| FGH | Fort Garry Horse |
| FGHRR | Fort Garry Horse Reserve Regiment |
| FGO | Fleet Gunnery Officer |
| Fgt | Frigate |
| FH | Field Hospital |
| FH | Field Hospital |
| FHP | Force Health Protection |
| FHPHIRCAMC | Fort Henry Permanent Hospital Installation, Royal Canadian Army Medical Corps |
| FHQS | Farnham Headquarters Staff |
| FI | Fireman |
| FI | Firing Interval or Fuze Ignition |
| FIBUA | Fighting In Built Up Areas |
| FIC | Fredericton Internment Camp |
| FID | Field Intelligence Department |
| FIDO | Fog Investigation and Dispersal Operation |
| FIFE | Fife |
| FilmPL | Film Projectionist Librarian |
| FIN | Financial |
| Fin Clk | Finance Clerk |
| FIN O | O Financial Officer |
| FinO | Financial Officer |
| Fireftr | Fire Fighter |
| FIS | Flying Instructors School |
| FIS | Foreign Intelligence Section (Naval) |
| FIT | Flight |
| FIU | Fighter Interception Unit |
| FIU | Fighter Interception Unit |
| FL | Flag Lieutenant |
| FL | Flying List |
| FL | Flight Lieutenant |
| FLAK | Anti-Aircraft (gun) |
| FLAMBO | Allied Forces Headquarters OR Air Force Headquarters, Advanced Administrative Echelon |
| FLC | Flag Lieutenant Commander |
| Fld | Field |
| Fld Eng | Field Engineer |
| Fld Pk Coy (or Sqn) | Field Park Company |
| FLD Pk Sqn | Filed Park Squadron |
| FLE | Fleet (U.S.) |
| FLE | Flight Engineer |
| FLET | Forward Location Enemy Troops |
| FLINTS. | Flintshire |
| FLLR | Follower |
| FLO | Flag Liaison Officer |
| FLOT | Forward Location Own Troops; or Flotilla (Flot) |
| FLOT | Flotilla (U.S.) |
| FLOT | Flotilla |
| FLS | Fighter Leaders School |
| FLS(PO) | French Liaison Service, Portsmouth |
| FLT | Flight |
| FLT | Fleet (U.S.) |
| FLT | Flight |
| Flt Eng | Flight Engineer |
| FLT LT | Flight Lieutenant |
| FLT Sgt | Flight Sergeant |
| Flt/Sgt | Flight Sergeant |
| FltSLt | Flight Sub-Lieutenant |
| FLUS | French Language Units |
| FLY | Flight (U.S.) |
| FM | Air Mechanic (Air Frames) |
| FM | Field Marshall |
| FM | Field Marshal |
| FMA | Flight Mechanic Airframes |
| FMA | Forward maintenance area |
| FMA | Forward Maintenance Area |
| FMAS | Financial and Managerial Accounting System |
| FMC | Force Mobile Command |
| FMC | Mobile Command |
| FMC | Field Maintenance Center |
| FME | Flight Mechanic Engines |
| FMHRCAMC | Farnham Military Hospital, Royal Canadian Army Medical Corps |
| FMHRCAMC | Fredericton Military Hospital, Royal Canadian Army Medical Corps |
| FMM | Formation |
| Fmn | Fireman |
| FMN | Formation |
| FMO | Full Marching Order |
| FMO | Field Marching Order |
| FMO | Fleet Mail Officer |
| FMO | Fleet Medical Officer |
| FMO | Fleet Meteorological Officer |
| FMP | Field Message Pad |
| FMR | Fusiliers de Mont Royal (French only) |
| FMR | Frontier Mounted Rifles |
| FMS | Facilities Management Squadron; or Field Maintenance Squadron |
| FMS | Army Repair Ship |
| FMSVF | Federated Malay States Volunteer Force |
| FND | Flinders Naval Depot |
| FNGB | French Navy in Great Britain |
| FNO | Fleet Navigating Officer |
| FO | Field Officer or Flying Officer |
| FO(S) | Flag Officer, Submarines |
| FOA | Field Operations Allowance |
| FOAM | Flag Officer Attached General Headquarters Middle East |
| FOB | Forward Operating Base |
| FOB | Forward Operating Base |
| FOBAA | Flag Of?cer British Assault Area |
| FOC | Flag Officer Commanding |
| FOCOS | Flag Officer Commanding Orkneys and Shetlands |
| FOCRF | Flag Officer Commanding Reserve Fleet |
| FOCRIN | Flag Officer Commanding Royal Indian Navy |
| FOCS | Flag Officer Cruiser Squadron |
| FOCT | Flag Officer Carrier Training |
| FOCWAF | Flag Officer Commanding West Africa |
| FOEA | Flag Officer East Africa and Zanzibar |
| FOGMA | Flag Officer Gibraltar and Mediterranean Approaches |
| FOGMO | Fitting Out Gun Mounting Overseer |
| FOGO | Fitting Out Gunnery Officer |
| FOH | French Official History |
| FOIC | Flag Officer-in-Charge |
| FOICNI | Flag Officer-in-Charge, Northern Ireland |
| Fol | Folio |
| FOLEM | Flag Officer Levant and Eastern Mediterranean |
| FOLUS | Flag Officer Liaison with Cdr. U.S. Naval Forces |
| FOMHRCAMC | Fort Osborne Military Hospital, Royal Canadian Army Medical Corps |
| FONAS | Flag Officer Naval Air Stations |
| FONF | Flag Officer Newfoundland Force |
| FOO | Forward Observation Officer |
| FOO | Forward Observation (or Observing) Officer |
| FOOAF | Flag Officer Overseas Assault Force |
| FOP | Future Operational Planning |
| FOPS | Future Operation Planning Section |
| For | Forestry |
| FOR | Force (U.S.) |
| FORESTERS | Sherwood Foresters (Nottinghamshire and Derbyshire |
| FORESTERS | The Sherwood Foresters (Nottinghamshire and Derbyshire Regiment) |
| Foresters (For) | The Sherwood Foresters (Nottinghamshire and Derbyshire Regiment) |
| Forf | Forfeits |
| Form | Formation |
| FORSCA | Flag Officer Red Sea and Canal Area |
| Fort (E & M) Coy | Fortress (Electrical and Mechanical) Company |
| Fort Garry | The Fort Garry Horse Regiment |
| FOSY | Flag Officer, Syracuse |
| FOTALI | Flag Officer Taranto, Royal Armoured Corps, Adriatic and for Liaison Duty With Italians |
| FOUO | For Official Use Only FP Ferry Pool |
| FOW, Med | Flag Officer Western Mediterranean |
| FOWIT | Flag Officer Western Italy |
| FOYE | Flag Officer, ''Y'' Entries |
| FP | Field Punishment |
| FP | Field Punishment |
| FPB | Force Polar Bear |
| FPCRCE | Field Park Company, Royal Canadian Engineers |
| FPCRCE(AP) | Field Park Company, Royal Canadian Engineers (Advance Party) |
| FPF | Final Protective Fire |
| FPNo(or#)1or2 | Field Punishment Number One or Two |
| FPO | Fire Prevention Officer |
| FPO | Field Post Office |
| FPP | Ferry Pilots Pool |
| FPS | Fixed Period of Service |
| FPSRCE | Field Park Squadron, Royal Canadian Engineers |
| FPSRCE(A)D | Field Park Squadron, Royal Canadian Engineers (Armoured) Division |
| FPTCRCE | Field Park Troop Company, Royal Canadian Engineers |
| FPU | Ferry Preparation Unit; or Film Production Unit |
| FR | Fighter Reconnaissance |
| FR | Fishermen's Reserve |
| FR | Fighter Reconnaisance |
| Fr,Fro | From |
| FR(S-P)RCA | Field Regiment (Self-Propelled), Royal Canadian Artillery |
| FR&I | Financial Regulations & Instructions |
| FRA | Freetown Area |
| Frac | Fractured - medical term for a broken bone |
| FRADO | Fleet Radar Officer |
| FRD | Forward Repair Depot |
| FREQ | Frequency |
| FREQ | Frequency |
| Fri | Frigate |
| FRMO | Fleet Royal Marine Officer |
| FRO | Fleet P. and Radio Telephony Officer |
| FRRCHA | Field Regiment, Royal Canadian Horse Artillery |
| FRS | Flying Refresher School |
| FRT | Forward Repair Team |
| FRT | Fortress |
| FRU | Field Repair Unit/Fleet Requirements Unit |
| FS | Fighting School |
| FS | Field service or field security |
| FS | Financial Superintendent |
| FS | Flat Scow |
| FS | Flight Sergeant |
| FS | Flying School or Flight Sergeant or Field Service or Field Security or Flash Spotting |
| fs | Feet per Second |
| FS Offr | Field Security Officer |
| FS Sec | Field Security Section |
| FSA | Fleet Signal Assistant |
| FSA | Food Service Attendant |
| FSAF&G | Fleet School of Aerial Fighting & Gunnery School |
| FSBRCA | Flash Spotting Battery, Royal Canadian Artillery |
| FSC | Farnham Summer Camp |
| FSD | Field Supply Depot or Field Servicing Dressing |
| FSDRCE | Field Survey Depot, Royal Canadian Engineers |
| FSDS | Fighter Support Development Squadron |
| FSgt | Flight Sergeant |
| FSjt | Flight Sergeant |
| FSL | Field Searchlight |
| FSM | Field Service Manual |
| FSMO | Full Service Marching Order |
| FSMO | Field Service Marching Order |
| FSMO | Field Service Marching Order |
| FSO | Fleet Signal Officer |
| FSO | Field Security Officer |
| FSP | Forward Staging Post |
| FSP | Foreign Service Premium |
| FSP | Forward Staging Post |
| FSPB | Field service pocket book |
| FSPB | Field Service Pocket Book |
| FSqn | Fighter Squadron (Royal Canadian Air Force) |
| FSR | Field Service Regulations |
| FSR | Field Service Regulations |
| FSRCCS | Fortress Signals, Royal Canadian Corps of Signals |
| FSRCE | Field Squadron, Royal Canadian Engineers |
| FSS | Ferry Support Squadron; or Flying Selection Squadron |
| FSS | Fixed signal service |
| FSS | Field Security Section |
| FSS | Field Security Section or Fixed Signal Service |
| FSSCRU | Field Security Section Canadian Reinforcement Unit |
| FST | Forward Surgical Team |
| FSTC | Field Security Training Centre |
| FSTS | Fire and Security Training School |
| FSTU | Fighter Support Training Unit |
| FSU | Field surgical unit |
| FSVC | Food Services |
| FSW | Field Security Wing |
| FT | Foot or feet |
| FT | French Translator |
| FT | Foot or Feet or Flame Thrower |
| FTB | Fleet Torpedo Bomber |
| FTC | Flying Training Command |
| FTC | Field Trials Camp |
| FtCdt | Flight Cadet |
| FTCE | Field Troop Canadian Engineers |
| FTCPF | Flying Training Command Practice Flight |
| FTF/U | Ferry Training Flight/Unit |
| FTFLT | Ferry Training Flight |
| FTLU | French Tactical Liaison Unit |
| FTO | Fleet Torpedo Officer |
| FTO | French Technical Officer |
| FtPayr | Fleet Paymaster |
| FTR | Failed to Return |
| FTR | Fitter or Failed to Return |
| FtrCOp | Fighter Control Operator |
| FTS | Flying Training School |
| FTS | Flying Training School |
| FTU | Ferry Training Unit/Floatplane Training Unit/Flight Trials Unit |
| FTU | Field transfusion unit |
| FTU | Ferry Training Unit |
| FTU | Field Transition Unit |
| FU | Ferry Unit |
| FUBAR | F**ked up Beyond All Repair |
| FUP | Forming up place |
| FUP | Forming Up Point (or Position) |
| FUP | Forming UP Place |
| Furl | Furlough |
| FUS | Fusilier(s) |
| FUS | Fusilier |
| Fus de MR | Les Fusiliers Mont-Royal Regiment |
| Fus de Sher | Les Fusiliers de Sherbrooke Regiment |
| Fus de StL | Les Fusiliers du St. Laurent Regiment |
| FusDuSher | Fusiliers de Sherbrooke (French only) |
| FW | Fighter Wing |
| FW | Foreman of Works |
| FW/SRCOC | Fortress Workshop, Royal Canadian Ordnance Corps |
| FWA | Fleet Wireless Assistant |
| FWD | Forward or forwarded |
| FWD | Forward or Forwarded |
| Fwd. | Forward |
| Fwm | Forewoman |
| FWO | Fleet Wireless Officer |
| FWS | Fighter Weapons School |
| FWTCRCA | Fortress Weapon Training Camp, Royal Canadian Artillery |
| FY | Patrol Vessel, Yacht (U.S.) |
| FYA | Fort York Armouries |
| G | General Staff Branch of the Staff |
| G | Gunnery |
| G | General Staff |
| G (Ops) | General Staff (Operations) |
| G Guards | Grenadier Guards |
| G.H.Q. | General Headquarters (GHQ) |
| G.P.T. | General Purpose Transport (GPT) |
| G.T. | General Transport (GT) |
| G'nr | Gunner - lowest rank in the Royal Canadian Artillery (equivalent to private) |
| G/C | Group Captain |
| G&SF | Grey & Simcoe Foresters |
| G1 | General Staff Officer Grade 1 |
| G2 | General Staff Officer Grade 2 |
| G3 | General Staff Officer Grade 3 |
| GA | Gunnery Armourer |
| GAF | Granted Annual Furlough |
| GAF | German Air Force |
| GAL | Gallon |
| GAL | Gallon |
| GAT | Guantanamo-Trinidad convoy |
| GATES | German Army Training Establishment Shilo |
| GATU | Ground Attack Training Unit |
| GB | Garrison Battalion |
| GBCODRCOC | Goose Bay Company Ordnance Depot, Royal Canadian Ordnance Corps |
| GBD | Goose Bay Defences |
| GBD | General Base Depot |
| GBE | Knight Grand Cross of the Order of the British Empire |
| GBE | Knight Grand Cross of the Order of the British Empre |
| GBMS | Great Britain Merchant Ships (a wireless message routine) |
| GBSRCASC | Goose Bay Section, Royal Canadian Army Service Corps |
| GC | Gliding Centre; or Groupe de Chasse; or Good Conduct |
| GC | George Cross |
| GC | Greek Catholic |
| GC | Good Conduct Badge - award for good conduct during service |
| GC | Group Captain or Good Conduct or George Cross or Guncotton |
| GC BADGE | badge Good Conduct Badge |
| GCA | Ground Controlled Approach |
| GCACon | Ground Controlled Approach Controller |
| GCAOS | Ground Controlled Approach Operation School |
| GCAS | Ground Controlled Approach Squadron |
| GCATU | Ground Controlled Approach Training Unit |
| GCB | Knight Grand Cross of the Order of the Bath |
| GCC | Group Control Centre |
| GCC | General Construction Company |
| GCCS | Global Command and Control System (Maritime) |
| GCCS | Government Code and Cypher School |
| GCF | Gunnery Co-operation Flight/Group Communication Flight |
| GCHQ | Government Communications HQ |
| GCI | Ground Controlled Interception |
| GCI | Ground Control Interception |
| GCM | General court-martial |
| GCM | General Court Martial |
| GCM | General Court Martial |
| GCMG | Knight Grand Cross of the Order of St.Michael and St.George |
| GCMG | Knight Grand Cross of St. Michael and St. George |
| GCMG | Knight Grand Cross of the Order of St. Michael and St. George |
| GCS | Ground Controlled Squadron |
| GCSI | Knight Grand Commander of the Order of the Star of India |
| GCT | Ground Combat Training |
| GCT | Greenwich Civil Time |
| GCU | Graves Concentration Unit |
| GCVO | Knight Grand Cross of the Royal Victorian Order |
| GCVO | Knight Grand Cross of the Royal Victorian Order |
| GD | General Duties |
| GD | Guard |
| GD | General Duties |
| GD | Group Duties |
| GD | Guard or General Duties |
| GDA | Gun Defended Area |
| GDC | Group Disbandment Centre |
| Gdefmn | Ground Defenceman |
| Gdfk | Goldflake |
| GDGS | Group Defence Gunnery School |
| GDL&RS | Guard Detachment Lanark & Renfrew Scottish Regiment |
| GDP | General Defence Plan |
| GDS | Guards |
| GDS ARMD | Guards Armoured (Division) |
| GDSM | Guardsman or guardsmen |
| Gdsm | Guardsman |
| GDSM | Guardsman or Guardsmen |
| GDSMGR | Guards Machine Gun Regiment |
| GDSN | Guardsman or guardsmen |
| GE | George Cross |
| GE | Garrison Engineer |
| GEC | General Employment Company |
| GED | Ground Equipment Depot; or General Educational Development |
| GEN | General |
| Gen | General - commanding officer at division or corps level |
| GEN | General |
| Gen Hosp | General Hospital |
| GEN HOSP | General Hospital |
| Gen Pnr Coy | General Pioneer Company |
| Geo | Geographical Section, General Staff |
| GEP | General Equipment Park |
| GEP | General Equipment Park |
| GES | Glider Exercise Squadron |
| GEU | Glider Exercise Unit |
| GF | Operation ''Goldflake'' |
| GF | Gun Fire |
| GFORCE | Labrador |
| GG | Ground Gunnery |
| GG | Ground Gunnery |
| GGDS | Grenadier Guards |
| GGFG | The Governor General?s Foot Guards Regiment |
| GGFG | Governor General's Foot Guards (Now 21st Armoured Regiment) |
| GGHG | The Governor General?s Horse Guards Regiment |
| GGHG | Governor General's Horse Guards |
| GGS | Ground Gunnery School |
| GH | General Hospital |
| GH | General Hospital |
| GHld | The Glasgow Highlanders Regiment |
| GHMHRCAMC | Gordon Head Military Hospital, Royal Canadian Army Medical Corps |
| GHQ | General Headquarters |
| GHQ | Group Headquarters |
| GHQ | General Headquarters - command centre from which corps or army commanders direct the war |
| GHQ | General Headquarters |
| GHQ&LofCTSI | General Headquarters and Line of Communication Troops Service Increment |
| GHQEIC | General Headquarters Echelon Indian Command |
| GHQRUHofC | General Headquarters Reconnaissance Unit Highlanders of Canada |
| GHQSWPA | General Headquarters South West Pacific Area |
| GHRCAMC | General Hospital, Royal Canadian Army Medical Corps |
| GI | Ground Instructional |
| GI | Gunnery Instructor |
| GIC | Gliding Induction Course (Air Cadets) |
| GIF | Glider Instructors Flight |
| GIP | Grid Intersecting Point |
| GIRO | General Instructions Routing Officers |
| GIS | Glider Instructors School |
| GIS | Ground Instructors School |
| GJL | Granted Jewish Leave |
| GL | Gun Laying (radar) |
| GL | General List or Gun Laying or Gun Light (radio direction finding) |
| GLAM. | Glamorgan |
| GlamYeo | Glamorgan Yeomanry |
| GLAS H | Glasgow Highlanders (TA) |
| GLASGOW | Glasgow |
| GLICHRCAMC | Grande Ligne Internal Camp Hospital, Royal Canadian Army Medical Corps |
| GLIDER | Glider Pilot Regiment |
| GLIDER P REGT | Glider Pilot Regiment |
| GLOSTERS | Gloucestershire Regiment |
| GLOSTERS | The Gloucestershire Regiment |
| Glosters (Glos) | The Gloucestershire Regiment |
| GLOUC | Gloucester |
| GloucR | Gloucestershire Regiment |
| GLOUCS. | Gloucestershire |
| GLS | General Labour Section |
| GM | Gunner's Mate Take charge of gun and crew. Assemble and fire all types of guns. Handle ammunition. Handle mines and depth charges. |
| GM | George Medal |
| GM | George Medal or Ground-Maximum (horse power) |
| GM1c | Gunner's Mate, First Class |
| GM2c | Gunner's Mate, 2d Class |
| GM3c | Gunner's Mate, 3d Class |
| GMA | Gibraltar, Morocco Area |
| GMC | General Military Course |
| GMHRCAMC | Gaspe Military Hospital, Royal Canadian Army Medical Corps |
| GMHRCAMC | Gravenhurst Military Hospital, Royal Canadian Army Medical Corps |
| GMO | Gun Mounting Overseer |
| GMP | Garrison Military Police |
| GMT | Greenwich Mean Time |
| GMT | General Military Training or Greenwich Mean Time |
| GN | Guantanamo-New York convoy |
| GNA | Greek Naval Attache |
| GND | ground |
| GNLO | Greek Naval Liaison Officer |
| GNR | Gunner (private in artillery) |
| GNR | Gunner |
| Gnr | Gunner - lowest rank in the Royal Canadian Artillery (equivalent to private) |
| GNR | Gunner |
| GO | Greek Orthodox (Church) |
| GO | Gunnery Officer |
| GO | General Order |
| GO | General Order |
| GO(s) | General Order(s) |
| GOC | General Officer Commanding |
| GOC | Government of Canada |
| GOC | General Officer Commanding |
| GOC | General Officer Commanding - highest ranking general, usually at corps level |
| GOC | General Officer Commanding |
| GOC (in C) | General Officer Commanding (in Chief) - highest ranking general, usually at corps level |
| GOC-IN-C | General Officer Commanding-in-Chief |
| GOCHMSRCAMC | Garnons Officers Convalescent Home Military Staff, Royal Canadian Army Medical Corps |
| GOCinC | General Staff (Operations) |
| GOCRA | General Officer Commanding Royal Artillery |
| GOCRM | General Officer Commanding Royal Marines |
| GOH | German Official History |
| GOR | Gun Operational Room |
| GOR | Gun Operation Room |
| GORD | The Gordon Highlanders |
| GordHighrs | Gordon Highlanders |
| GORDONS | Gordons Highlanders |
| Gordons (Gdn) | The Gordon Highlanders Regiment |
| GOSShip | Norwegian Whaler |
| GOTU | Glider Operational Training Unit |
| Gov-Gen | Governor General |
| Gov. | Government |
| GP | General Purpose |
| GP | Group |
| GP | Group or General Purpose or Gunpowder |
| GP (C) | Group Captain |
| GP (COMDR) | Group Commander |
| GP CF | CF Group Conversion Flight |
| Gp. | Group |
| GP/DA | Group Disposal Account (book-keeping exercise for damaged aircraft) |
| GPCRCE | General Pioneer Company, Royal Canadian Engineers |
| GPEU | Glider Exercise Unit |
| GPIS | Glider Pilot Instructors School |
| GPL | Granted Privileged Leave |
| GPMG | General Purpose Machine Gun |
| GPMHRCAMC | Grande Prairie Military Hospital, Royal Canadian Army Medical Corps |
| GPO | Gun Position Officer |
| GPO | Gun Position Officer |
| GPOA | Gun Position Officer Assistant |
| GPR | Glider Pilot Regiment |
| GPR | Glider Pilot Regiment |
| GPS | Global Positioning System |
| GPSRCE | General Pioneer Section, Royal Canadian Engineers |
| GPT | General Purpose Transport |
| GPUTF | Glider Pick-up Training Unit |
| GQA | Government Quality Assurance |
| GR | General reconnaissance |
| GR | Group (US) |
| GR | Gunner or Gurkha Rifles or General Reconnaissance |
| GR | George Rex (George King) |
| GR | Garhwal Regiment |
| GR&ANS | General Reconnaissance and Air Navigation School |
| GRC | Graves Registration Cross |
| GREEN HOWARDS | Green Howards (Alexandra, Princess of Wales Own |
| Green Howards (GrnH) | The Green Howards (Alexandra, Princess of Wales's Own Yorkshire Regiment) |
| GREN | Grenades |
| GREN GDS | Grenadier Guards |
| GREN GDS | Grenadier Guards |
| Gren Gds (GG) | The Grenadier Guards Regiment (The First or Grenadier Regiment of Foot Guards) |
| GREYS | The Royal Scots Greys Regiment (2nd Dragoons) |
| GREYS | The Royal Scots Greys (2nd Dragoons) |
| GreySimFor | Grey & Simcoe Foresters |
| GRF | Ground Radar Fitter |
| GRI | George Rex et Imperator (George King and Emperor) |
| GRICS | Ground Radio Installation Clearance Service (security clearance for visitors) |
| GRif | The Royal Garhwal Rifles Regiment |
| GRN | Garrison |
| GRN | Garrison |
| Grn. | Garrison |
| GRO | General routine order |
| GRO | General Routine Order |
| GRP | Group |
| Grp. | Group |
| GRS | General Reconnaissance School |
| GRS | General Reconnaissance Squadron |
| GRSF | Ground Radio Servicing Flight |
| GRSS | Ground Radio Servicing Squadron |
| GRSTD | Gun Room Steward |
| GRT | Gross Registered Tonnage |
| GRU | General Reconnaissance Unit |
| GRU | General Reinforcement Unit |
| GRU | Graves Registration Units |
| GRU | Graves Registration Unit or Gunnery Research Unit |
| GRU/F | General Reconnaissance Unit/Flight |
| GRUNT | Slang Word For An Infantryman |
| GS | Gliding School; or General Specification; or Grading School |
| GS | General service or general staff |
| GS | Greek Ship |
| GS | Greenland-Sydney Convoy |
| GS | General Staff |
| GS | General Service |
| GS | General Staff or General Service or Gliding School |
| GSB | General Staff Branch |
| GSC | General Service Corps |
| GSC | Gunnery Staff Course |
| GSC | General Service Corps |
| GSE | Glider Servicing Echelon |
| GSF | Glider Servicing Flight |
| GSF | The Grey and Simcoe Foresters Regiment |
| GSF | Gulf Sea Frontier |
| GSGS | Geographical Section General Staff |
| GSL | Granted Short Leave |
| GSM | General Service Medal |
| GSO | General staff officer (with Arabic or Roman enumeration appended to show grade) |
| GSO | General Staff Officer |
| GSO | General Staff Order |
| GSO | General Staff Officer |
| GSO 1 | General Staff Officer Grade 1 |
| GSO 1, 2, or 3 | General Staff Officer, 1st, 2nd or 3rd Grade |
| GSO 2 | General Staff Officer Grade 2 |
| GSO 3 | General Staff Officer Grade 3 |
| GSO1 | General Staff Officer, Grade 1 |
| GSP | Government Security Policy |
| GSP | General Staff Planning |
| Gsr | Greaser |
| GSSR | General Service Special Reserve |
| GSU | Group Support Unit |
| GSW | Gunshot Wound |
| GSW | Gun Shot Wound - wound caused by a bullet |
| GSW | Gunshot wound or General Service Wagon |
| GT | coy General transport company |
| GT | Granted |
| GTC | Government Telegraph Code |
| GTC(RCASC)CD | General Transport Company, (Royal Canadian Army Service Corps), Canadian Division |
| Gtd | Granted |
| GTD | Granted |
| GTF | Gunnery Training Flight |
| GTPS | Glider & Tug Pilots School |
| GTS | Glider Training Squadron; or Glider Training School |
| GTS | Glider Training School |
| GU | Grading Unit |
| GU | Gunner |
| GU | Gibraltar-United States Convoy |
| GUAS | Glasgow University Air Squadron |
| GUI | Guide |
| Gunner (T) | Torpedo Gunner |
| Gurk | The Gurkha Rifles Regiment |
| GV | Gate Vessels |
| GWCBD | "G" Wing Canadian Base Depot |
| GWCFC | General Workshop, Canadian Field Company OR Canadian Forestry Corps |
| GWDS | Guided Weapon Development Squadron |
| GWF | Ground Wireless Fitter |
| GWOT | Global War On Terror |
| GWTS | Guided Weapon Training Squadron |
| GZ | Guantanamo-Panama convoy |
| H | Head or Honorary or Horse or Household or Hussars or Hygiene |
| H CAV | Household Cavalry |
| H Div | Medical, dental |
| H-V (P) | Officers of the Volunteer Reserve appointed in a probationary status who are students in medical or dental colleges. |
| H-V (S) | Officers of the Volunteer Reserve appointed for special service and assignment to the Medical Corps. |
| H.A.A. | Heavy Anti-Aircraft (HAA) |
| H.L.I. of C. | The Highland Light Infantry of Canada |
| H.M.C.S. | His Majesty's Canadian Ship |
| H.M.S. | His Majesty's Ship |
| H.Q. | Headquarters (HQ) |
| H(21AG) | Hospitalization Central Mediterranean Force (Allied Armies Italy) |
| H/ | Honourary (Rank) |
| H/ | Honorary (Rank) |
| H/ | Honorary or Honourable |
| H/Capt | Honorary Captain |
| H/Capt | Honorary Captain (Canadian Chaplain Service) |
| H/F | High Frequency |
| H&NPAO | Hamilton & Niagara Peninsula Area Orders |
| H&PER | Hastings & Prince Edward Regiment |
| HA | Hospital Apprentice Know minor surgery, first aid and nursing. Maintain sanitary conditions. |
| HA | Honours & Awards (Records) |
| HA | Hygiene Assistant |
| HA | Halifax-Aruba convoy |
| HA | Heavy Artillery or High Angle |
| HA(A)DRCE | Headquarters (Armoured) Division, Royal Canadian Engineers |
| HA/LA | High Angle, Low Angle (gunnery) |
| HA1c | Hospital Apprentice, First Class |
| HA2c | Hospital Apprentice, Second Class |
| HAA | Heavy Anti Air |
| HAA | Heavy Anti-Aircraft |
| HAA | Heavy Anti-Aircraft |
| HAABRCA | Heavy Anti-Aircraft Battery, Royal Canadian Artillery |
| HAAPC | Heavy antiaircraft Practice Camp |
| HAAR(M)RCS | Heavy Anti-Aircraft Regiment (Mobile) Royal Canadian Signals |
| HAARSRCASC | Heavy Anti-Aircraft Regiment Section, Royal Canadian Army Service Centre |
| HAARW/SRCEME | Heavy Anti-Aircraft Regiment Workshop, Royal Canadian Electrical and Mechanical Engineers |
| HAARW/SRCOC | Heavy Anti-Aircraft Regiment Workshop Section, Royal Canadian Ordnance Corps |
| HAB | High-altitude Bombing |
| HAC | Honourable Artillery Company |
| HAC | Honourable Artillery Company |
| HACArt | Honourable Artillery Company, Artillery Section |
| HACInf | Honourable Artillery Company, Infantry Section |
| HAD | Home Aircraft Depot |
| HAD | Heavy Air Defence |
| HAG | Heavy Artillery Group |
| HAL | Halifax Approval Letter |
| Hal Rif | The Halifax Rifles |
| HALLAMS | Hallamshire Battalion, York and Lancaster Regiment (TA) |
| Hallams (Halm) | The Hallamshire Battalion (Y & L) |
| HalRif | Halifax Rifles |
| HAMPS | Hampshire Regiment |
| HAMPS | The Hampshire Regiment |
| Hamps (Hamp) | The Hampshire Regiment |
| HampsR | Hampshire Regiment |
| HampsY | Hampshire Yeomanry |
| HANTS. | Hampshire |
| HAR | Heavy Artillery Reserve |
| Hast & PER | The Hastings and Prince Edward Regiment |
| HATS | Hull, Armament, Turret, Suspension |
| HAV | Havildar |
| HAVR | Havildar |
| HAZMAT | Hazardous Material |
| HB | Heavy Bomber |
| HB | Hostile Battery |
| HB | Heavy Bomber |
| HBCU | (Heavy Bomber) Conversion Unit |
| HC | Harbour Craft |
| HC | Headquarters Company |
| HC | Honorary Captain |
| HC-V (G) | Officers of the Volunteer Reserve appointed for general service in the Hospital Corps. |
| HC-V (S) | Officers of the Volunteer Reserve appointed for special service in the Hospital Corps. |
| HCA | Health Care Administrator |
| HCB | Halifax Coast Brigade |
| HCC | Hospital Conveyance Corps |
| HCCS | Home Command Communications Squadron |
| HCD | High Current Density |
| HCEU | Home Command Examining Unit |
| HCF | Helicopter Communications Flight; or Home Communications Flight |
| HCMF(AAI) | Hospitalization Central Mediterranean Force (Allied Armies Italy) |
| HCR | The Household Cavalry Regiment |
| HCU | Heavy Conversion Unit |
| HCVDF | Hong Kong Volunteer Defence Force |
| HD | Home Defence or horse drawn |
| HD | Holding Depot |
| HD | Home Defence |
| HD | Head or Home Defence or Horse-drawn |
| HDC | Harbour Defence Craft |
| HDLG SQN | Sqn Handling Squadron |
| HDML | Harbour Defence Motor Launch |
| Hdmstr | Headmaster |
| HDPC | Harbour Defence Patrol Crafts |
| Hdqrs | Headquarters |
| HDU | Helicopter Development Unit |
| HE | High Explosive; Home Establishment (movements) |
| HE | Holding Establishment |
| HE | High Explosive |
| HE | His/Her Excellency |
| HE | High Explosive or Home Establishment or Home Embarkation or Horizontal Equivalent |
| HEAP | High Explosive Armour-piercing |
| HEAT | High Explosive Anti Tank |
| HEDA | High Explosive delayed-action fuze |
| HEDELAY | High Explosive Graze Fuze With Delay |
| HEGRAZ | High Explosive graze fuze |
| HEIT | High Explosive Incendiary Tracer |
| HEL | Helicopter |
| HEMTT | Heavy Expanded Mobility Tactical Truck |
| HEP | Height Filtering Position |
| HEREF. | Herefordshire |
| HEREFORD | Herefordshire Regiment (TA) |
| HerefordR | Herefordshire Regiment |
| Hert | The Herfortshire Regiment |
| HERT | Hertfordshire Regiment |
| HERTS | Hertfordshire Regiment (TA) |
| HERTS. | Hertfordshire |
| HertsR | Herefordshire Regiment |
| HES | High Explosive Substitute |
| HETF | High Explosive Time Fuze |
| HETIM | High Explosive Time Fuze |
| HF | Harrassing fire or high frequency |
| HF | Harassing Fire |
| HF | Home Fleet |
| HF | Home Forces or High Frequency or Home Fleet or Hostile Fire or High Frequency |
| HF/DF | High Frequency Direction Finding |
| HFDF | High Frequency Direction Finding |
| HFF | Heavy Freight Flight |
| HFSC | Headquarters Farnham Summer Camp |
| HFU | Home Ferry Unit |
| HG | Home Guard |
| HG | Hotchkiss Gun or Home Guard |
| HGCU | Heavy Glider Conversion Unit |
| HGHRCAMC | Horley General Hospital, Royal Canadian Army Medical Corps |
| HGMU | Heavy Glider Maintenance Unit |
| HGSU | Heavy Glider Servicing Unit |
| HGTU | Heavy Glider Training Unit |
| HHT | House Hunting Trip |
| HighCycBn | Highland Cyclist Battalion |
| HIGHLAND R | Highland Regiment |
| HighLI | Highland Light Infantry |
| HIH | His (Her) Imperial Highness |
| HIM | His (Her) Imperial Majesty |
| HK | Hong Kong |
| HKAAF | Hong Kong Auxiliary Air Force |
| HKFS | Hong Kong Fighter Squadron |
| HKRgt | Hong Kong Regiment |
| HKS | Hong Kong and Singapore |
| HKSRA | Hong Kong and Singapore Royal Artillery |
| HKVA | Hong Kong Volunteer Air Force |
| HKVDC | Hong Kong Volunteer Defense Corps |
| HKVDC | Hong Kong Volunteer Defence Corps |
| HLC | Harbour Launch Company |
| HLD | Higgins Tank Lighter |
| HLI | Highland Light Infantry (City of Glasgow Regiment) |
| HLI | The Highland Light Infantry Regiment (City of Glasgow Regiment) |
| HLI | (29th Regiment) Highland Light Infantry of Canada |
| HLI | The Highland Light Infantry |
| HLIofC | The Highland Light Infantry Regiment of Canada |
| HLIofC | Highland Light Infantry of Canada |
| HLMHRCAMC | Howe Lake Military Hospital |
| HLVW | Heavy Lift Vehicle, Wheeled; or Heavy Logistics Vehicle Wheeled |
| HLVW | Heavy Logistics Vehicle Wheeled |
| HM | Her/His Majesty |
| HM | Hull Mechanic |
| HM | His/Her Majesty |
| HM(C)S | His/Her Majesty's (Canadian) Ship |
| HMA | Honorary Major |
| HMAS | His Majestys Australian Ship |
| HMAT | His/Her Majesty's Auxiliary Transport |
| HMB | Heavy Mortar Battery |
| HMCoastGd | His/Her Majesty's Coast Guard |
| HMCS | Her Majesty's Canadian Ship |
| HMCS | His/Her Majesty's Canadian Ship |
| HMCS | His Majesty's Canadian Ship |
| HMFD | Having Moved From District |
| HMG | Heavy Machine Gun |
| HMG | Heavy Machine Gun |
| HMHRCAMC | Hamilton Military Hospital, Royal Canadian Army Medical Corps |
| HMHRCAMC | Huntingdon Military Hospital, Royal Canadian Army Medical Corps |
| HMHRCAMC | Halifax Military Hospital, Royal Canadian Army Medical Corps |
| HMIS | His Majesty's Indian Ship |
| HMMWV | High Mobility Multipurpose Wheeled Vehicle (Humvee) |
| HMS | His/Her Majesty's Ship (UK) |
| HMS | His/Her Majesty's Ship - vessel under the control of the Royal Navy |
| HMS | His/Her Majesty's Service |
| HMS | His/Her Majesty's Ship |
| HMSAS | His Majesty's South African Ship |
| HMT | His/Her Majesty's Transport Ship |
| HMT | His/Her Majesty's Transport |
| HMT | His/Her Majesty's Troopship - designated ship carrying troops between Canada and England and England and France |
| HMTS | His/Her Majesty's Troopship - designated ship carrying troops between Canada and England and England and France |
| HNU | Head Nurse |
| HO | Hospital Orderly |
| HOCF | Helicopter Operational Conversion Flight |
| HOFOR | Home Forces |
| Hon | Honourable |
| Hon | Honorary |
| Hon. | The Honourable |
| HONO | Honolulu (U.S.) |
| HOS | Hospital |
| HOSE | Hospital Sergeant |
| HOSP | Hospital |
| Hosp | Hospital - designated location where soldiers receive medical treatment |
| HOSP | Hospital |
| Hosp. | Hospital |
| HouseholdBn | Household Battalion |
| HOW | Hozitzer |
| how | howitzer |
| HOW | Howitzer - an artillery weapon (various calibres) capable of firing shells in a low or high arc |
| HOW | Howitzer |
| HP | High power or horse power |
| HP | Hospital Plant |
| HP | High power (radio set) or Horse Power or Hospital Pattern (tent) |
| HPC | Harbour Patrol Crafts |
| HPMC | Hasting Park Military Camp |
| HPTM | Hauptman |
| HQ | Headquarter(s) |
| HQ | Headquarters - command centre for a military unit in the field (company level and above) |
| HQ | Headquarters |
| HQ AC | AC Headquarters Air Cadets |
| HQ ATA | ATA Headquarters Air Transport Auxiliary |
| HQ EFT | EFT Headquarters Elementary Flying Training |
| HQ FPP | FPP Headquarters Ferry Pilots Pool |
| HQ P&SS | P&SS Headquarters Provost & Security Services ('Snowdrops') |
| HQ PTC | PTC Headquarters Personnel & Training Command |
| HQ RA | Headquarters Royal Artillery |
| HQ STC | STC Headquarters Strike Command |
| HQ TAF | TAF Headquarters Tactical Air Force |
| HQ-CAPO(GS&AS) | Headquarters - Canadian Army Post Office (General Staff & Administrative Staff) |
| HQ, Hqs | Headquarters |
| HQ''B"GCHU | Headquarters ''B'' Group Canadian Holding Unit |
| HQ''D''GRU | Headquarters ''D'' Group Reinforcement Unit |
| HQ"C"F | Headquarters ''C'' Force |
| HQ(A)D | Headquarters (Armoured) Division |
| HQ&BD | Headquarters & Base Details |
| HQ1stD | Headquarters 1st Division |
| HQ2CdnAGRA | (Headquarters 2 Canadian) Army Group Royal Artillery |
| HQAAB | Headquarters Anti-Aircraft Brigade |
| HQAABRCA | Headquarters Anti-Aircraft Brigade, Royal Canadian Artillery |
| HQAC | Headquarters Atlantic Command |
| HQACS | Headquarters Atlantic Command Signals |
| HQADGB | Headquarters, Air Defence Great Britain |
| HQATAFCA | Headquarters Army Troops Area First Canadian Army |
| HQATD | Headquarters Army Troops Details |
| HQATSSRCS | Headquarters Army Terminals Signal Section, Royal Canadian Signals |
| HQBA | Headquarters Base Area |
| HQBC | Headquarters Bomber Command |
| HQBD(GS&AS) | Headquarters Botwood Defences (General Staff & Administrative Staff) |
| HQBTNI | Headquarters British Troops in Northern Ireland |
| HQBU | Headquarters Base Unit |
| HQCA | Headquarters Coastal Command |
| HQCAA&A-TGRCA | Headquarters Canadian Anti-Aircraft & Anti-Tank Group, Royal Canadian Artillery |
| HQCAC | Headquarters Canadian Armoured Corps |
| HQCACRCASC | Headquarters Canadian Artillery Company, Royal Canadian Army Service Corps |
| HQCADARCA | Headquarters Canadian Armoured Division Artillery, Royal Canadian Artillery |
| HQCADREME | Headquarters Canadian Armoured Division, Royal Electrical and Mechanical Engineers |
| HQCAGRCA | Headquarters Canadian Artillery Group, Royal Canadian Artillery |
| HQCAMG | Headquarters Canadian Army Meteorological Group |
| HQCATB | Headquarters Canadian Army Tank Brigade |
| HQCC | Headquarters Canadian Corps |
| HQCCARCA | Headquarters Canadian Corps Artillery, Royal Canadian Artillery |
| HQCCATRCASC | Headquarters Canadian Army Troops, Royal Canadian Army Service Corps |
| HQCCCTCRCASC | Headquarters Command Canadian Corps Transport Column, Royal Canadian Army Service Corps |
| HQCCE | Headquarters Canadian Constructional Engineers |
| HQCCGTC | Headquarters Command Canadian General Transport Column |
| HQCCIDRCASC | Headquarters Command Canadian Infantry Division, Royal Canadian Army Service Corps |
| HQCCTRCE | Headquarters Canadian Corps Troops, Royal Canadian Engineers |
| HQCCTREME | Headquarters Canadian Corps Troops, Royal Electrical and Mechanical Engineers |
| HQCCTTCRCASC | Headquarters Canadian Corps Tank Transporter Column, Royal Canadian Army Service Corps |
| HQCDECA(OS) | Headquarters Canadian Divisional Engineers, Canadian Artillery OR Canadian Army (Overseas) |
| HQCDRCASC | Headquarters Canadian Division, Royal Canadian Army Service Corps |
| HQCDREME | Headquarters Canadian Division, Royal Electrical and Mechanical Engineers |
| HQCEWRCE | Headquarters Chief Engineer Works, Royal Canadian Engineers |
| HQCFC | Headquarters Canadian Forestry Corps |
| HQCFN | Headquarters Canadian Forces in the Netherlands |
| HQCIB | Headquarters Canadian Infantry Brigade |
| HQCID | Headquarters Canadian Infantry Division |
| HQCProC | Headquarters Canadian Provost Corps |
| HQCPS | Headquarters Canadian Postal Services |
| HQCRCASCCCT | Headquarters Commander, Royal Canadian Army Service Corps, Canadian Corps Troops |
| HQCRCEMEFCAT | Headquarters Commander, Royal Canadian Electrical and Mechanical Engineers, First Canadian Army Troops |
| HQCRTCRCS | Headquarters Canadian Railway Telegraph Company, Royal Canadian Signals |
| HQCRU | Headquarters Canadian Reinforcement Unit |
| HQD | Headquarters Details |
| HQDCDCA | Headquarters Deputy Commander First Canadian Army |
| HQDIZB | Headquarters Details Infantry "Z" Brigade |
| HQDPCAPO | Headquarters Defended Port Canadian Army Post Office |
| HQDPofS | Headquarters Defended Port of Sydney |
| HQDPofSJ | Headquarters Defended Port of Saint John |
| HQDRCA | Headquarters Division, Royal Canadian Artillery |
| HQDRCASC | Headquarters Division, Royal Canadian Army Service Corps |
| HQDRCE | Headquarters Division, Royal Canadian Engineers |
| HQDRCE(AA) | Headquarters Division, Royal Canadian Engineers, (Active Army) |
| HQDRCE(RA) | Headquarters Division, Royal Canadian Engineers, (Reserve Army) |
| HQEAFME | Headquarters Royal Air Force, Middle East |
| HQEF | Headquarters Esquimalt Fortress |
| HQFCA | Headquarters First Canadian Army |
| HQFCACAS | Headquarters First Canadian Army Civil Affairs Staff |
| HQFCASRCS | Headquarters First Canadian Army Signals, Royal Canadian Signals |
| HQFCATC | Headquarters First Canadian Army Training Camp |
| HQFCATC | Headquarters First Canadian Army Transport Column |
| HQFMCCC | Headquarters Field Maintenance Centre Canadian Corps |
| HQFMCRCASC | Headquarters Field Maintenance Centre, Royal Canadian Army Service Corps |
| HQGB | Headquarters Greek Bridge |
| HQGCTU | Headquarters Group Canadian Training Units |
| HQGD | Headquarters Gaspe Defences |
| HQHF | Headquarters Home Forces |
| HQHFRCA | Headquarters Halifax Fortress, Royal Canadian Artillery |
| HQLA-CWAC | Headquarters London Area - Canadian Women's Army Corps |
| HQMA | Headquarters Medium Artillery |
| HQMARCA | Headquarters Medium Artillery, Royal Canadian Artillery |
| HQMD | Headquarters Military District |
| HQMD#1 | Headquarters Military District # 1 |
| HQMD#2H&NPC | Headquarters Military District # 2, Hamilton & Niagara Peninsula Command |
| HQMD#3,K | Headquarters Military District # 3, Kingston |
| HQMDNo2(NCD) | Headquarters Military District No. 2 (Niagara Camp Details) |
| HQMDVB | Headquarters Military District Vancouver Barracks |
| HQME | Headquarters Middle East |
| HQNWACAF | Headquarters North-West African Coastal Air Force |
| HQPC | Headquarters Pacific Command |
| HQPRD | Headquarters Prince Rupert Defences |
| HQRA | Headquarters RA (the CRA/CCRA's staff)(headed by Brigade Major RA (BMRA)) |
| HQRCAF | Headquarters Royal Canadian Air Force |
| HQRCD | Headquarters Reconstituted Canadian Division |
| HQRCECAT | Headquarters, Royal Canadian Engineers, Canadian Army Troops |
| HQRCEMECCT | Headquarters, Royal Canadian Electrical and Mechanical Engineers, Canadian Troops |
| HQRCEWO | Headquarters, Royal Canadian Engineers, Works Organization |
| HQS (No) | Distinguishing letters on files of National Defence Headquarters (Army), Ottawa |
| HQS-SDTA | Headquarters Sub-Staff Dunburn Training Area |
| HQS(H)CAD | Headquarters Squadron (Hussars) Canadian Armoured Division |
| HQS&CD | Headquarters Sydney and Canso Defences |
| HQS&S-S | Headquarters Staff and Sub-staff |
| HQSAD | Headquarters Squadron Armoured Division |
| HQSATB (AD) | Headquarters Squadron Army Tank Brigade (Armoured Division) |
| HQSATB (NBRT) | Headquarters Squadron Army Tank Brigade (New Brunswick Regt. Tank) |
| HQSCABAP | Headquarters Squadron Canadian Armoured Brigade Advance Party |
| HQSCNPHQRCS | Headquarters Signals Company, National Defence Headquarters Royal Canadian Signals |
| HQSD | Headquarters Shelburne Defences |
| HQSD(CB)CADAF | Headquarters Squadron Details (Camp Borden), Canadian Armoured Division Active Force |
| HQSF | Headquarters Sydney Fortress |
| HQSG | Headquarters Support Group |
| HQSGCAD | Headquarters Support Group Canadian Armoured Division |
| HQSHDCAPO | Headquarters St. John's Defences Canadian Army Post Office |
| HQSMD | Headquarters Staff Military District |
| HQSPC | Headquarters Staff Petawawa Camp |
| HQSVC | Headquarters Staff Valcartier Camp |
| HQTC | Headquarters Tracadie Camp |
| HQTTCPS | Headquarters Technical Training Command Publicity Section |
| HQV&EF | Headquarters Victoria & Esquimalt Fortress |
| HQVB | Headquarters Vancouver Barracks |
| HQVD | Headquarters Vancouver Defences |
| HQVGofC | Headquarters Veterans Guard of Canada |
| HR | Human Resources |
| HR | Hour |
| HR | Halifax Rifles |
| HR | Hospital Records |
| HR | Human Resources |
| HR | Hour |
| HRC | Heavy Recovery Section |
| Hrfd | The Herefordshire Regiment |
| HRFD | Herefordshire Regiment |
| HRG | Historical Research Group |
| HRH | His (Her) Royal Highness |
| HRH | His/Her Royal Highness |
| HRH | His (Her) Royal Highness |
| HRMS | Human Resources Management System |
| HRPE | Hampton Roads Port of Embarkation. Shortly after its activation 15 June 1942 the port was responsible for combat loading the Western Task Force of the North African invasion assault convoy. |
| HRR | Heals Rifles |
| Hrs | Hours |
| HRS | Heavy Repair Shop |
| HRS | Hussars |
| HRS | Horse |
| HRW(MT)RCASC | Heavy Repair Workshop (Mechanical Transport) Royal Canadian Army Service Corps |
| HS | Home Sister |
| HS | Hellenic Ship |
| HS | Home Service or Hospital Ship |
| HS FLT | Flt High Speed Flight |
| HSBPT | High Speed Battle Practice Target |
| HSCRFU | Home Security Course Reserve Fleet Units |
| HSO | Health Services Officer |
| HSS | Hospital Staff Sergeant |
| HST | High Speed Telegraphist |
| HST | Hospital Steward |
| HSTS | High Speed Target Service |
| HT | High tension or horsed transport |
| HT | Halifax-Trinidad Convoy |
| HT | Hull Technician |
| HT | Horse Transport |
| HT | Horse Transport or Hired Transport or Half Track or High Tension (voltage) |
| HTCU | Heavy Transport Conversion Unit |
| HTech | Hull Technician |
| HTM | Heavy Trench Mortar |
| HTS | Heavy Transport Squadron |
| HTSCU | (Heavy Transport Support) Conversion Unit |
| HU | Holding Unit |
| HUA | Heard, Understood, Acknowledged |
| Hull | Le Regiment de Hull |
| HUMINT | Human Intelligence (information collected from a human source) |
| HUNTS. | Huntingdonshire |
| HuntsCyclistBn | Huntingdonshire Cyclist Battalion |
| HV | High Velocity |
| HVM | Hyper Velocity Missile |
| Hvy | Heavy |
| HWE | Home War Establishment |
| Hwr | Howitzer |
| HX | Halifax (New York) to United Kingdom Convoy |
| HXF | Fast Halifax (New York) to United Kingdom Convoy |
| HY | Heavy |
| HY | Heavy |
| HY ART MAINT SEC | Heavy Artillery Maintenance Section |
| Hy. | Heavy |
| Hybad | The Hyderabad Regiment |
| HYG | Hygiene |
| HYG | Hygiene |
| Hyg. | Hygiene |
| HygTech | Hygiene Technician |
| I | India |
| I | Intelligence Branch of the General Staff |
| I | Interrogation |
| I | India or Indian or Intelligence |
| I (b) | Secret Service Branch of the General Staff |
| I-GEC(A) | Inspector-General Eastern Canada (Army) |
| I-O | Infantry Officers |
| I-V (S)2 | Officers of the Volunteer Reserve appointed for special intelligence duties. |
| I.SIG.S. | Indian Signal Service |
| I''A''toCSGHQEAP | Increment ''A'' to Canadian Section |
| I"E"toHQCT | Increment ''E'' to Headquarters Canadian Troops |
| I(A)HQCAGRA | Increment (A) Headquarters Canadian, Army Group Royal Artillery |
| I/C | In charge |
| I/C | In-Command |
| I/C | In Charge |
| I/O | Intelligence Officer |
| IA | Indian Army |
| IA | Immediate Action |
| IA | Indian Army or Immediate Action |
| IAAD | Inland Area Aircraft Depot |
| IAAS | Inland Area Aircraft School |
| IAC | Indian Armoured Corps |
| IAC | Indian Armoured Corps |
| IACC | Indian Army Corps of Clerks |
| IAF | Indian Air Force |
| IAF | Inspector of Admiralty Fuel |
| IAF | Indian Air Force |
| IAFVR | Indian Air Force Volunteer Reserve |
| IAFVR | Indian Air Force Volunteer Reserve |
| IAM | Institute of Aviation Medicine |
| IAMC | Indian Army Medical Corps |
| IAMC | Indian Army Medial Corps |
| IAMUS | Installation Automated Manpower Utilization System |
| IAO | Indian Army Order |
| IAOC | Indian Army Ordnance Corps |
| IAP | Initial Assessment Phase |
| IAPF | Inland Area Practice Flight |
| IARO | Indian Army Reserve of Officers |
| IAS | Infantry Assault Ships |
| IASC | Indian Army Service Corps |
| IATC | Infantry Advanced Training Center |
| IAVC | Indian Army Veterinary Corps |
| IAVMED | Institution of Aviation Medical CCF Iraq Command Communication Flight |
| IAW | In Accordance With (reference) |
| IAW | In Accordance With |
| IB | Infantry Brigade |
| IBD | Infantry Base Depot |
| IBD | Infantry Base Depot |
| IBDCASF(LS) | Infantry Base Depot, Canadian Active Service Force, (Lorne Scots) |
| IBDP | Infantry Brigade Defence Platoon |
| IBLAD | Infantry Brigade Light Aid Detachment |
| IBofUK&C | Inspection Board of United Kingdom & Canada |
| IBRS | Infantry Brigade Recce Squadron |
| IBSS&WT | Infantry Brigade Signals Section & Wireless Telegraphy |
| IBTS | Individual Battle Task Standards |
| IC | Incident Commander |
| IC | Internal combustion or in charge of |
| IC | In charge or internal combustion |
| IC | Instructional Cadre |
| IC | Internment Camp |
| IC | In Command |
| IC | In Command or In Charge or Intelligence Corps or Inns of Court Regiment |
| ICB | Inspection of Contract Built Ships |
| ICB | Inspector of Contract Built Ships |
| ICB | Inspector of Contract Built Ships (Naval) |
| ICC | Input Control Centre |
| ICCDP | Iceland Coastal Command Daily Programme |
| ICCFS | Inspecting Captain Of Coastal Force Schools |
| ICCPC | Internment Camp Canadian Provost Corps |
| ICCSSMedal | International Commission of Control and Supervision Service Medal (Vietnam) |
| ICCY | Inns of Court and City Yeomanry |
| ICE | Integrated Clothing Ensemble |
| ICEPAT. | Iceland Patrol (U.S.) |
| ICF/S | Italy Communication Flight/Squadron |
| ICFPC | Increment Canadian Field Punishment Camp |
| ICI | Imperial Chemical Industries |
| ICI | Imperial Chemical Industry |
| ICMHRCAMC | Internment Camp Military Hospital, Royal Canadian Army Medical Corps |
| ICR (IC) | The Inns of Court Regiment |
| ICSCS Medal | International Commission for Supervision and Control Service Medal (Indo China) |
| ID | Identification |
| IDC | Imperial Defence College |
| IDC | Imperial Defence College |
| IDE | Imperial Defence College or Inter-Department Cypher |
| IDENT | Identification |
| IdentTech | Identification Technician |
| IDF | Iraq Defence Flight |
| IDF | Indian Defence Force |
| IDGHRCAMC | Infectious Diseases General Hospital, Royal Canadian Army Medical Corps |
| IDSM | Indian Distinguished Service Medal |
| IE | Initial Establishment; or Intermediate Engagement |
| IE | Corps of Royal Indian Engineers |
| IE | Namely or that is to say |
| IE | That is to say or namely |
| IE | Increased Endurance |
| IE | Intermediate Engagement |
| IE | Initial Establishment or Initial Equipment |
| IE | Illegal Enlistment |
| IECS | Improved Environmental Clothing System |
| IED | Improvised Explosive Device |
| IEF | Indian Expeditionary Force |
| IEF | Indian Expeditionary Force |
| IEME | Indian Electrical and Mechanical Engineers |
| IETech | Instrument Electrical Technician |
| IF | Irish Fusiliers |
| IFCCS | Indirect Fire Control Computer Software |
| IFCS | Integrated Fire Control System |
| IFDU | Intensive Flying Development Unit |
| IFF | Identification Friend or Foe |
| IFF | Identification Friend or Foe |
| IFIS | Irish Flying Instructors School |
| IFofC | Irish Fusiliers of Canada (11th Regiment) |
| IFPP | No. 1 Ferry Pilots Pool |
| IFS | Instrument Flying Squadron |
| IFS | Instrument Flying School |
| IFSAC | International Fire Service Accreditation Congress |
| IFTS | Initial Flying Training School |
| IFTU | Instrument Flying Training Unit/Intensive Flying Trials Unit |
| IG | The Irish Guards (The Irish Regiment of Foot Guards) |
| IG | Irish Guards or Instructor of Gunnery |
| IG(CC) | Inspector-General (Central Canada) |
| IGC | Imperial General Council |
| IGds | Irish Guards |
| IGH | Indian General Hospital |
| IGN SAFE | Igniter's Safety Fuze |
| IGT | Initial Gliding Training (Air Cadets) |
| IGTCAC | Instructors Gunnery Team, Canadian Armoured Corps |
| IHC | Indian Hospital Corps |
| IHU | Infantry Holding Unit |
| II | Image Intensifier |
| ILDS | Improved Landmine Detection System (held only by 4 ESR) |
| ILF | Independent Liaison Flight |
| ILH | The Imperial Light Horse Regiment |
| ILP | Individual Learning Plan |
| ILS | Instrument Landing System |
| ILS | Indicator Loop Station |
| IMA | Indian Mountain Artillery |
| IMD | Information Management Directive |
| IMD | Indian Medical Department |
| IMD | Indian Medical Department |
| IMHRCAMC | Ipperwash Military Hospital, Royal Canadian Army Medical Corps |
| IMP | Individual Meal Packets |
| Imp | Imperial |
| IMPT HL | Imprisonment with Hard Labour |
| IMS | Indian Medical Service |
| IMS | Indian Medical Service |
| IMT | Indian Mechanical Transport |
| IMTU | Inspector of Machine Tool Utilisation |
| IN | inch |
| IN | Inspector |
| IN | Inch |
| INAITCoy | Infantry Brigade AIT Company |
| INC | Incendiary |
| INCL | Include, included, including or inclusive |
| Incl | include, included, inclusive or including |
| INCL | Include or included or inclusive |
| IND | India or Indian |
| ind | independent |
| IND | India or Indian |
| IND A | Indian Army |
| Ind. Inf. Bde. | Indian Infantry Brigade (Ind Inf Bde) |
| Ind. Inf. Bde. Ord. Wksp. | Indian Infantry Brigade Ordnance Workshop (Ind Inf Bde Ord Wksp) |
| Ind. Inf. Bde. Sigs. | Indian Infantry Brigade Signals (Ind Inf Bde Sigs) |
| Ind. Inf. Bde. Wksp. | Indian Infantry Brigade Workshop (Ind Inf Bde Wksp) |
| IndefLve | Indefinite Leave |
| INDEP | Independent |
| INDEP | Independent |
| Indep. | Independent |
| INF | Infantry |
| Inf | Infantryman |
| Inf | Infantry |
| INF | Infantry |
| Inf. | Infantry |
| Inf. Bde. | Infantry (Inf Bde) |
| Inf. Bde. A. Tk. Coy. | Infantry Brigade Army Tank Company (Inf Bde A Tk Coy) |
| Inf. Bde. Coy. | Infantry Brigade Company (Inf Bde Coy) |
| Inf. Bde. Gp.Ord. Coy. R.A.O.C | Infantry Brigade Group Ordnance Company, Royal Army Ordnance Corps (Inf Bde Gp Ord Coy RAOC) |
| Inf. Bde. Ord. Coy. | Infantry Brigade Ordnance Company (Inf Bde Ord Coy) |
| Inf. Bde. Ord. Fd. Pk. | Infantry Brigade Ordnance Field Park (Inf Bde Ord Fd Pk) |
| Inf. Bde. Ord. Fd. Pk. Coy. | Infantry Brigade Ordnance Field Park Company (Inf Bde Ord Fd Pk Coy) |
| Inf. Bde. Ord. Wksp. | Infantry Brigade Ordnance Workshop (Inf Bde Ord Wksp) |
| Inf. Bde. Sigs. | Infantry Brigade Signals (Inf Bde Sigs) |
| Inf. Bde. Sigs. Sec. | Infantry Brigade Signals (Inf Bde Sigs Sec) |
| Inf. Bde. Wksp. | Infantry Brigade Workshop (Inf Bde Wksp) |
| INFM | Inform, informed or information |
| INFM | Inform or Information |
| Infm. | Information |
| Infmn | Infantryman |
| INFO | Information |
| INFO | Information |
| INFY | Infantry |
| Inj | Injured |
| INNIS DG | 5th Royal Inniskilling Dragoon Guards |
| INNISKS | Royal Inniskilling Fusiliers |
| INNISKS | The Royal Inniskilling Fusiliers |
| Innisks (Inskn) | The Royal Inniskilling Fusiliers Regiment |
| INNS OF COURT | Inns of Court Regiment |
| INO(W) | Inspector of Naval Ordnance (Woolwick) |
| Inspr | Inspector |
| inst | Instruct, instructed, instruction or instructor |
| INSTAL A | Installations type A |
| INSTR | Instruct, instructed, instruction or instructor |
| Instr | Instruction(al) |
| Instr(s) | Instructor(s) |
| InstrCr | Instructor Commander |
| INT | Intelligence; or Interned |
| INT | CORPS Intelligence Corps |
| int | Intelligence |
| INT | Interpreter |
| INT | Intelligence |
| Int Corps | Intelligence Corps |
| INT O | Intelligence Officer |
| INT O | Intelligence Officer |
| INT OP | Intelligence Operator |
| INT SUM | Sum Intelligence Summary |
| Int. | General Staff Officer 1 (Intelligence) |
| IntC | Internment Camp |
| INTEL | Intelligence (U.S.) |
| INTER | Interpreter |
| INTERCOMM | Intercommunication |
| INTERCOMM | Intercommunication |
| IntOp | Intelligence Operator |
| INTR | Interpreter |
| Intrep | Intelligence Report |
| inv | Invalid |
| Inv"wd" | Invalided Wounded - a soldier transferred away from the front as a result of wounds received in action |
| INVERNESS. | Inverness-shire |
| INWE | Infantry North West Echelon |
| IO | Intelligence officer |
| IO | Indian Officer of Intelligence Officer |
| IO/SB.C.D.C. | Intermediate Overseas Base, Canadian Dental Corps OR Canadian Disciplinary Centre |
| IOA | Indian Ocean Area |
| IOB | Inspector of Booms (Naval) |
| IOC | Instructional Officer Course |
| IOD | Indian Ordnance Department |
| IODE | Imperial Order of the Daughters of the Empire |
| IOM | Isle of Man |
| IOM | Indian Order of Merit |
| IOO | Inspecting ordnance officer |
| IOO | Inspecting Ordnance Officer |
| IOR | Indian Other Ranks |
| IORA | Intelligence Officer Royal Artillery |
| IORAS | Inspection of Reserve Army Stores |
| IORE | Intelligence Officer Royal Engineer |
| IOS | Inspector of Ordnance Services |
| IP | Intellectual property |
| IP | Indian pattern (tent) |
| IPB | Intelligence Preparation of Battlefield |
| IPC | Island Park Camp |
| IPO | Inshore Patrol Officer |
| IPS | Indian Postal Service |
| IQMGS | Inspector Quartermaster General's Service |
| IR | Immediate Reserve; or Individual Reservist |
| IR | Instructor's Regiment |
| IR | Immediate Reserve |
| Ir.Fus.(VR) | Irish Fusiliers (Vancouver Regiment) |
| IR&SU | Immediate Reserve & Support Unit |
| IRA | Irish Republican Army |
| IREM | Inspector of Royal Engineer Machinery |
| IRF | Independent Reconnaissance Flight |
| IRG | Immediate Replenishment Group |
| IrGds | Irish Guards |
| IRIS | Inspector of Radio Installation Services |
| Irish | The Royal Irish Regiment |
| Irish Fus | The Irish Fusiliers of Canada (The Vancouver Regiment) |
| Irish RofC | The Irish Regiment of Canada |
| IrofC | Irish Regiment of Canada |
| IRRU | Instant Readiness Reserve Unit |
| IRS | Intelligence Reports Section (Naval) |
| IRTD | Infantry Reinforcement Training Depot |
| IRU | Immediate Reaction Unit |
| IRV | India Rubber Vulcanized (wire) |
| IRVC | Imperial Railways Volunteer Corps |
| IS | Internal Security |
| IS | Imperial Service or Internal Security |
| IS Tech | Integral Systems Technician |
| IS.C.B. | Inter-Service Communications Board (U.S.) |
| ISAF | International Security Assistance Force |
| ISC | Infantry Section Carrier |
| ISC | Inter Service Committee |
| ISC | Inter-Service Cypher |
| ISC | Indian Staff Corps |
| ISC | Indian Signal Corps or Infantry Section Carrier |
| ISCC | Infantry Section Commander's Course |
| ISCO | Intelligence Section, Combined Operations |
| ISF | Internal Security Flight |
| ISF | Indian State Forces |
| ISF | Internal Security Force |
| ISHQCC | Intelligence Section Headquarters Canadian Corps |
| ISI | Imperial Service Infantry |
| ISO | Imperial Service Order |
| ISO | Companion of the Imperial Service Order |
| ISp | Intelligence Specialist |
| ISTAR | Intelligence, Surveillance, Target Acquisition and Reconnaissance |
| ISTD | Inter-Service Topographical |
| ISTDC | Interservice Training Defence Centre |
| IT | Light or lieutenant |
| IT | Instructional Technique |
| IT&E | Individual Training and Education |
| ITB | Infantry Training Battalion |
| ITC | Infantry Training Centre |
| ITC | Infantry Training Centre |
| ITC(R) | Infantry Training Centre (Reserve) |
| ITD | Infantry Training Depot |
| ITD | Infantry Training Depot |
| ITDUCIC | Infantry Training Demonstration Unit, Canadian Infantry Corps |
| ITech | Instrument Technician |
| ITF | Indian Territorial Force |
| ITF/S | Instrument Raining Flight/Squadron |
| ITM | Inspector of Torpedoes and Mines |
| ItoHQCC | Increment to Headquarters Canadian Corps |
| ItoHQCID | Increment to Headquarters Canadian Armoured Division |
| ITS | Initial Training School |
| ITS | Initial Training School |
| ITW | Initial Training Wing |
| ITW | Infantry Training Wing |
| IW | Individual Weapon |
| IW.C.B.D. | 'I'' Wing Canadian Base Depot |
| IWBB | Improvised Widened Bailey Bridge |
| IWDRE | Inland Waterways & Docks, Royal Engineers |
| IWGC | Imperial War Graves Commission |
| IWT | Inland Water Transport |
| IWT | Inland Water Transport |
| IYB | Imperial Yeomanry Bearer |
| IYH | Imperial Yeomanry Hospital |
| J | Jewish |
| J COMD | Junior Commander |
| J COMD | Junior Commander |
| J/T | Junior Technician |
| J&K | The Jammu and Kashmir Regiment |
| J3 | Joint Staff 3 (Operations and Training) |
| JABCA | Joint Atomic, Biological and Chemical Defensive Warfare School |
| JAG | Judge Advocate General |
| JAG | Judge Advocate General |
| JAN | Joint Army & Navy Radio Procedure |
| JAPIC | Joint Air Photographic Interpretation Centre |
| JARIC | Joint Air Reconnaissance Intelligence Centre |
| JASS | Joint Anti-Submarine School |
| Jat | The Jat Regiment |
| JATE | Joint Air Transport Establishment |
| JATP | Joint Air Training Plan |
| JCU | Jet Conversion Unit (Bomber Command Jet Conversion Unit) |
| JEFTS | Joint Elementary Flying Training Squadron |
| JEHU | Joint Experimental Helicopter Unit |
| JEW | Jewish |
| JFACT&SU | Joint Forward Air Controllers Training & Standards Unit |
| JFHQ | Joint Force Headquarters |
| JGWTU | Joint Guided Weapons Training Unit |
| JHDU | Joint Helicopter Development Unit |
| JHQ | Joint Headquarters |
| JHQ | Joint Headquarters |
| JIMRTTRG | Job Inspector Mechanical Relations Transportation Training |
| JINSTOR | Job Instructor |
| JIX | Unclassified Ships (U.S) |
| JLS | Junior Leader's School |
| JLS | Japanese Language School |
| JLTC | Junior Leader's Training Centre |
| JMC | Johnson Method of Coaching |
| JMHRCAMC | Joliette Military Hospital, Royal Canadian Army Medical Corps |
| JMT | Job method training |
| JNBCD | Joint Nuclear, Biological, and Chemical Defence |
| JNCO | Junior NCO |
| JNCO | Junior Non-commissioned Officer |
| Joiner | Joiner |
| JP | Joint Planners |
| JP | Joint Planning or Justice of the Peace |
| JPTU | Jet Provost Trials Unit |
| JR | R?giment de Joliette (available in french only) |
| JRC | Junior Ranks Club (Mess) |
| JRT | Job Relations Training |
| JSC | Joint Services Committee |
| JSM | Joint Staff Mission |
| JSPI | Joint School of Photographic Interpretation |
| JSSC | Joint Services Staff College |
| JSSPT | School for Jungle Self Preservation Training |
| JSTU | Joint Services Trials Unit |
| JSU | Junior Sergeant |
| JT | Junior Technician |
| JTC | Jasper Training Camp |
| JTC | Junior Training Corps |
| JTF | Joint Task Force (land/air/sea); or Jet Training Flight |
| JTF-2 | Joint Task Force 2 |
| JTF2 | Joint Task Force 2 |
| JTU | Joint Trials Unit |
| JUNC | Junction |
| JUNC | Junction |
| JWE | Joint Warfare Establishment |
| JWEC | Junior War Establishments Committee |
| JWPS | Joint War Production Staff |
| k | knots |
| K | King or King's |
| K Div | Communications (radio, signal, sound, electrical) |
| K&BMHRCAMC | Kingston & Barriefield Military Hospital, Royal Canadian Army Medical Corps |
| KAAU | Kenya Auxiliary Air Unit |
| KAF | Kenya Air Force |
| KAF | Kenya Air Force |
| KAR | The King's African Rifles Regiment |
| KAR | King's African Rifles |
| KAR | King's African Rifles |
| KB | King's Bench or Knight Bachellor of Kite Balloon |
| KBE | Knight Commander of the Order of the British Empire |
| KBO | Kildare Barracks Ottawa |
| KBR | Kellogg Brown and Root |
| KC | King's Commendation |
| KC | Kilocycles |
| KCB | Knight Commander of the Order of the Bath |
| KCB | Knight Commander of the Order of the Bath |
| KCIE | Knight Commander of the Order of the Indian Empire |
| KCMG | Knight Commander of the Order of St. Michael and St. George |
| KCMG | Knight Commander of the Order of St. Michael and St.George |
| KCSI | Knight Commander of the Order of the Star of India |
| KCVO | Knight Commander of the Royal Victorian Order |
| KD | Khaki Drill |
| KD | Khaki Drill |
| KDF | Kenya Defence Force |
| KDG | 1st King's Dragoon Guards |
| KDG | The 1st (King's) Dragoon Guards |
| KDG | 1st King's Dragoon Guards |
| KE ROUND | Round Kinetic Energy Round |
| KEdwH | King Edward's Horse |
| Ken | The Kensington Regiment |
| KENSINGTONS | Kensington Regiment (TA) |
| KENT | Kent |
| Kent | The Kent Regiment |
| Kent R | Kent Regiment |
| KentCycBn | Kent Cyclist Battalion |
| KF | King's Flight |
| KFS | Knife, Fork, Spoon |
| KG | Knight of the Order of the Garter |
| KG | Knight of the Garter |
| KGO | The King George V's Own Regiment |
| KHM | King's Harbour Master |
| KIA | Killed In Action |
| KIA | Killed In Action - designation of how a soldier died |
| KIA | Killed in Action |
| KIN. | Kincardineshire |
| KING'S | The King's Regiment (Liverpool) |
| King's (Kgs) | The King's Regiment (Liverpool) |
| KING'S OWN | The King's Own Royal Regiment |
| King's Own (KO) | The King's Own Royal Regiment (Lancaster) |
| KINGS | King's Regiment (Liverpool) |
| KINROSS. | Kinross-shire |
| KIRKBT. | Kirkcudbrightshire |
| KLFS | Kula Lumpur Fighter Squadron |
| KMB | Kabul Multi-National Brigade |
| KMHRCAMC | Kingston Military Hospital, Royal Canadian Army Medical Corps |
| KMHRCAMC | Kitchener Military Hospital, Royal Canadian Army Medical Corps |
| KMW | Senior Polish Naval Officer in London |
| KODY | Killed on duty |
| KOMR | The King's Own Malta Regiment |
| KOR of C | The King?s Own Rifles of Canada Regiment |
| KORC | King's Own Rifles of Canada |
| KORofC | King's Own Rifles of Canada |
| KOSB | The King's Own Scottish Borderers Regiment |
| KOSB | King's Own Scottish Borderers |
| KOSB | King's Own Scottish Borderers |
| KOYLI | The King's Own Yorkshire Light Infantry Regiment |
| KOYLI | King's Own Yorkshire Light Infantry |
| KOYLI | King's Own Yorkshire Light Infantry |
| KP | Knight of St. Patrick |
| KPHIRCAMC | Kingston Permanent Hospital Installation, Royal Canadian Army Medical Corps |
| KPIB | Key Points Investigation Bureau |
| KR | The Kenya Regiment (European Territorial Force) |
| KR | The Kaffrarian Rifles Regiment (South Africa) |
| KR | King's Regulations |
| KR | Kent Regiment |
| KR | King's Regulations |
| KR&ACI | King's Regulations & Air Council Instructions |
| KR&AI | King's Regulations & Admiralty Instructions |
| KR&O | King's Regulations and Orders |
| KRandAI | King's Regulations and Admiralty Instructions |
| KRCN | King's Regulations for the Government of the Canadian Naval Service |
| KRR | King's Royal Rifle Corps |
| KRRC | The King's Royal Rifle Corps Regiment |
| KRRC | King's Royal Rifle Corps |
| KRRC | King's Royal Rifle Corps |
| KRRifC | King's Royal Rifle Corps |
| KRS | King's Regulations |
| KRS | King's Regulations |
| KSLI | The King's Shropshire Light Infantry Regiment |
| KSLI | King's Shropshire Light Infantry |
| KSLI | King's Shropshire Light Infantry |
| Kt | Knight |
| KT | Knight of the Thistle |
| KTDRCA | Kine Theodolite Detachment, Royal Canadian Artillery |
| KTS | Composite Training School (Royal Canadian Air Force) |
| KUAS | Kent University Air Squadron |
| KUF | Polish Drafting Officer, London |
| Kum | The Kumaon Rifles Regiment |
| KZ | Killing Zone |
| KZ | Killing Zone |
| L | Lieutenant |
| L | Lance or Local or Lancers or Light (weight of fuzes) |
| L BDR | Lance-bombardier |
| L CPL | Lance corporal |
| L GDS | Life Guards |
| L OF C | Line, or lines of communication |
| L of C | Line(s) of Communication |
| L of C | Line or Lines of Communications |
| L OF COMM | Line of Communication |
| L SJT | Lance serjeant |
| L-CDR | Lieutenant-Commander |
| L-CPL | Lance-Corporal |
| L-Gen | Lieutenant-General |
| L-SGT | Lance-Sergeant |
| L-SJT | Lance-Serjeant |
| L-V (S) | Officers of the Volunteer Reserve appointed for special legal duties. |
| L. Edmn. R. | The Loyal Edmonton Regiment |
| L.A.A. | Light Anti-Aircraft (LAA) |
| L.A.D. | Light Aid Detachment (LAD) |
| L.C.A. | Landing Craft, Assault |
| L.C.G. | Landing Craft, Gun |
| L.C.G.(L.) | Landing Craft, Gun (Large) |
| L.C.I.(S.) | Landing Craft, Infantry (Small) |
| L.C.M. | Landing Craft, Mechanized |
| L.C.S.(L.) | Landing Craft, Support (Large) |
| L.C.S.(M.) | Landing Craft, Support (Medium) |
| L.C.T. | Landing Craft, Tank |
| L.C.V.(P) | Landing Craft, Vehicle (Personnel) |
| L.M.G. | Light Machine-Gun |
| L.O.C. | Line-of-Communication |
| L.S.I. | Landing Ship, Infantry |
| L.S.T. | Landing Ship, Tank |
| L'DON | London |
| L/ | Lance (rank) |
| L/ | Leading |
| L/Bdr | Lance Bombardier |
| L/BDR | Lance-Bombardier |
| L/Cpl | Lance Corporal |
| L/S | Leading Seaman |
| L/SA | Leading Stores Assistant |
| L/Sgt | Lance Sergeant |
| L/Sjt | Lance Sergeant |
| L/Sto | Leading Stoker |
| L&R Scott R | The Lanark and Renfrew Scottish Regiment |
| L&RSGD | Lanark & Renfrew Scottish Guard Detachment |
| L&RSR | Lanark & Renfrew Scottish Regiment |
| L&W | The Lincoln and Welland Regiment |
| L&WRegt | Lincoln & Welland Regiment |
| L1S | Level One Advisors as set out in A-FN-100-002/AG-006 |
| LAA | Light Anti-Aircraft |
| LaA | Light Aid Detachment |
| LAA | Light Anti-Aircraft |
| LAA | Light Anti-Aircraft |
| LAA REGT | Light Anti-Aircraft Regiment |
| LAAGS | Light Anti-Aircraft Gunnery School |
| LAAPC | Light Anti-Aircraft Practice Camp |
| LAARPRCASC | Light Anti-Aircraft Regiment Platoon, Royal Canadian Army Service Corps |
| LAARRCA | Light Anti-Aircraft Regiment, Royal Canadian Artillery |
| LAARSRCASC | Light Anti-Aircraft Regiment Section, Royal Canadian Army Service Corps |
| LAARSS | Light Anti-Aircraft Regiment Signals Section |
| LAARW/SSRCOC | Light Anti-Aircraft Regiment Workshop Section, Royal Canadian Ordnance Corps |
| LAATTRCA | Light Anti-Aircraft Training Troop, Royal Canadian Artillery |
| LAB | Laboratory or labour |
| LAB | Light Armoured Battery |
| LAB | Laboratory or Labour |
| Lab. | Labour |
| LabCorps | Labour Corps |
| LAC | Leading Aircraftman (Airforce); or Library and Archives Canada |
| LAC | Leading Aircraftman |
| LAC | Leading Aircraftman |
| LAC | Leading Aircraftman |
| LACW | Leading Aircraft Woman (Airforce) |
| LAD | Light Aid Detachment |
| LAD | Light Aid Detachment |
| LADC | Lieutenant Aide-de-Camp |
| LADCAPCS | Light Aid Detachment Canadian Armoured Personnel Car Squadron |
| LADRCEME | Light Aid Detachment, Royal Canadian Electrical and Mechanical Engineers |
| LADRCOC | Light Aid Detachment, Royal Canadian Ordnance Corps |
| LAFO | Laboratory Foreman |
| Lake Sup R | The Lake Superior Regiment |
| Lake Sup. Regt. | The Lake Superior Regiment (Motor) |
| Lan Yeo | The Lanarkshire Yeomanry Regiment |
| LanarkYeo | Lanarkshire Yeomanry |
| LANCS. | Lancashire |
| LanFus | Lancashire Fusiliers |
| LARC | Lighter Amphibious Resupply Cargo |
| LAS | Light Aircraft School |
| LASER | Light Amplification by Stimulated Emission of Radiation |
| LAT | Latitude |
| LAV | Light Armoured Vehicle |
| LAV | Light Armoured Vehicle |
| LAW | Leading Aircraft Woman (Airforce) |
| LAW | Leading Aircraftwoman |
| LAW | Leading Aircraft Woman |
| LB | Local Battery or Labour or Light Bomber |
| lb / lbs | (weight) pounds |
| LBandsmn | Leading Bandsman |
| LBE | Landing Barge, Emergency Repair |
| LBF | Landing Barge, Flak |
| LBF | Landing Boats |
| LBH | The Lothian and Border Horse Regiment |
| LBH | Lothian and Border Horse |
| LBM | Landing Boats |
| LBO | Landing Barge, Oiler |
| LBS | Landing Barge, Support |
| lbs | Pounds |
| LBV(1) | Landing Barge Vehicle (Mark I) |
| LBV(L)(2) | Landing Barge Vehicle (Large, Mark II) |
| LBV(S)(2) | Landing Barge Vehicle (Small, Mark II) |
| LBW | Landing Barge Water |
| LC | Lieutenant-Colonel |
| LC | Landing Craft |
| LC | Landing Craft or Line (or Lines) of Communications |
| LCA | Landing Craft, Assault |
| LCA | Landing Craft Assault |
| LCA(HR) | Landing Craft (Hedgerow) (U.S.) |
| LCB | Landing Craft Barge |
| LCB(D) | Landing Craft Barge (Dumb) (U.S.) |
| LCB(M) | Landing Craft Barge (Mechanised) (U.S.) |
| LCDR | Lieutenant Commander |
| LCDR | Lieutenant Commander or Major |
| LCE | Landing Craft Emergency - Repair |
| LCF | Lincoln Conversion Flight |
| LCF | Landing Craft Flak |
| LCF | Levant Coast Flotilla |
| LCF(L) | Landing Craft, Flak (Large) |
| LCG | Landing Craft, Gun |
| LCG(L) | Landing Craft, Gun (Large) |
| LCG(M) | Landing Craft, Gun (Medium) |
| LCG(M) | Landing Craft Gun (Medium) |
| LCG(T) | Landing Craft Gun (Tower) |
| LCH | Landing Craft Headquarters |
| LCH | Land Craft Headquarters |
| LCI | Landing Craft Infantry |
| LCI | Landing Craft Infantry |
| LCI(L) | Landing Craft, Infantry (Large) |
| LCI(L) | Landing Craft Infantry (Large) |
| LCI(L) | Landing Craft Infantry (Large) (U.S.) |
| LCI(S) | Landing Craft, Infantry (Small) |
| LCI(S) | Landing Craft Infantry (Small) |
| LCk | Leading Cook |
| LCM | Landing Craft Mechanized |
| LCM(1) | Landing Craft Mechanised (Mark I) |
| LCM(2) | Landing Craft Mechanised (Mark 2) (U.S.) |
| LCM(3) | Landing Craft Mechanised (Mark 3) (U.S.) |
| LCM(W) | Landing Craft Mechanized (wood) |
| LCMB | Landing Craft Maintenance Base |
| LCMSD | Landing Craft Material Supply Depot |
| LCMSO | Landing Craft Maintenance Stores Officer |
| LCN | Landing Craft Navigational (U.S.) |
| LCOCU | Landing Craft Obstacle* Clearance Unit (*also seen as Obstruction Clearing) |
| LCOCU | Landing Craft Obstruction Clearance Unit |
| LCOL | Lieutenant Colonel |
| LCP | Launch Control Post (Bloodhound missile) |
| LCP | Landing Craft Personnel |
| LCP(2) | Landing Craft Personnel (Mark II) |
| LCP(L) | Landing Craft Personnel (Large) |
| LCP(L) | Landing Craft Personnel (Large) (U.S.) |
| LCP(L)FOO | Landing Craft Personnel (Large) Forward Observation Officer |
| LCP(L)NAV | Landing Craft Personnel (Large) Navigation |
| LCP(M) | Landing Craft Personnel (Medium) (U.S.) |
| LCP(R) | Landing Craft Personnel (Ramped) (U.S) |
| LCP(S) | Landing Craft Personnel (Small) (U.S.) |
| LCPL | Lance Corporal |
| LCr | Lieutenant Commander |
| LCR(L) | Landing Craft Rubber (Large) |
| LCR(S) | Landing Craft Rubber (Small) |
| LCS(L) | Landing Craft, Support (Large) |
| LCS(L) | Landing Craft Support (Large) (U.S.) |
| LCS(M) | Landing Craft, Support (Medium) |
| LCS(M)(3) | Landing Craft Support (Medium, Mark III) (U.S.) |
| LCS(R) | Landing Craft Support (Rocket) |
| LCS(S) | Landing Craft Support (Small) (U.S.) |
| LCT | Landing Craft, Tank |
| LCT | Landing Craft Tanks |
| LCT | Landing Craft Tank |
| LCT(1) | Landing Craft Tank (Mark I) |
| LCT(2) | Landing Craft Tank (Mark II) (U.S.) |
| LCT(3) | Landing Craft Tank (Mark III) (U.S.) |
| LCT(4) | Landing Craft Tank (Mark IV) (U.S.) |
| LCT(5) | Landing Craft Tank (V) (U.S.) |
| LCT(AVRE) | Landing Craft Tank (Armed Vehicle Royal Engineers) |
| LCT(R) | Landing Craft Tank (Rocket) |
| LCT(Sp) | Landing Craft Tank (Support) |
| LCV | Lorry Command Vehicle |
| LCV | Landing Craft Vehicle (U.S.) |
| LCV(2) | Landing Craft Vehicle (Mark II) |
| LCV(P) | Landing Craft, Vehicle, Personnel |
| LCV(P) | Landing Craft Vehicle (Personnel) |
| LD | Light Draught or Lands |
| LDF | Land Defence Force |
| LDG | Landing |
| LDG | Landing |
| Ldng | Leading |
| LDR | Leader |
| LDRCAPC | Lancaster Detachment Royal Canadian Army Pay Corps |
| LDS | Latter Day Saint Church |
| LdSH | The Lord Strathcona's Horse Regiment (Royal Canadians) |
| LDSH (RC) | (RC) Lord Strathcona's Horse (Royal Canadians) |
| LDV | Local Defence Volunteers |
| LE | Low Explosive |
| LEICESTERS | Leicestershire Regiment |
| LEICESTERS | The Leicestershire Regiment |
| Leicesters (Leic) | The Leicestershire Regiment |
| LeicR | Leicestershire Regiment |
| LEICS. | Leicestershire |
| LeicYeo | Leicestershire Yeomanry |
| LeinsR | Leinster Regiment |
| LEME | Land Electrical and Mechanical Engineering |
| LER | Royal Edmonton Regiment |
| LF | Lancashire Fusiliers |
| LF | The Lancashire Fusiliers Regiment |
| LF | Leave & Furlough |
| LF | The Lancashire Fusiliers or Low Frequency |
| LF de MR | Les Fusiliers de Mont Royal (French only) |
| LFA | Land Force Area |
| LFA | R?giment de L?vis |
| LFA | Le R?giment de Chateauguay |
| LFAA | Land Force Atlantic Area |
| LFAA | Le R?giment de Hull |
| LFC | Land Force Command (Army) |
| LFC | Les Voltigeurs de Qu?bec |
| LFC2IS | Land Force Command and Control Information System |
| LFCA | Land Force Central Area |
| LFCA | Land Force Central Area (Toronto) |
| LFCA TC | TC Land Forces Central Area Training Centre |
| LFDTS | Land Forces Doctrine and Training System |
| LFMHRCAMC | Lesters Field Military Hospital, Royal Canadian Army Medical Corps |
| LFNA | Land Force Northern Area |
| LFQA | Land Force Quebec Area |
| LFRR | Land Force Reserve Restructure |
| LFS | Lancaster Finishing School |
| LFWA | Land Force Western Area |
| LFWA | Land Force Western Area (Edmonton) |
| LFWATC | Land Force Western Area Training Centre |
| LG | Landing Ground |
| LG | The Life Guards Regiment |
| LG | Lethbridge Garrison |
| LG | Lewis Gun |
| LG | London Gazette - official British government publication of decorations, honours and promotions |
| LG | Landing Ground or London Gazette or Life Guards or Lewis Gun |
| LGC | Landing Craft Control |
| LGDS | Life Guards |
| LGEN | Lieutenant General |
| LGS Wagon | Limbered General-Service Wagon |
| LH | Light Horse |
| LH | Local Headquarters |
| LH | Lighthouse or Left Hand |
| LHQ | Local Headquarters (Army Cadet term) |
| LI | Light Infantry |
| LIAP | Leave in addition to Python |
| Lieut | Lieutenant |
| LIEUT | Lieutenant |
| LIEUT CMDR | Lieutenant-Commander |
| Light AA TNG REGT | Light Anti-Aircraft Regiment |
| LIJIT | Leader in Job Instruction Training |
| LINC R | Lincolnshire Regiment |
| LINC WELD | Weld Lincoln and Welland Regiment |
| LINC YOE | Lincolnshire Yeomanry |
| LINCOLNS | Lincolnshire Regiment |
| Lincolns (Linc) | The Lincolnshire Regiment |
| LINCOLNS R | The Lincolnshire Regiment |
| LincR | Lincolnshire Regiment |
| LincYeo | Lincolnshire Yeomanry |
| Line. & Welld. | The Lincoln and Welland Regiment |
| LIR | The London Irish Rifles Regiment |
| LIR | London Irish Rifles (TA) |
| LIR | London Irish Rifles |
| litho | Lithographic(al) |
| LItoCSGHQEAGp | (Legal) Increment to Canadian Section General Headquarters, Echelon Army Group |
| LIVPL SCOT | Liverpool Scottish (TA) |
| LIVPL SCOT | Liverpool Scottish |
| Livpl Scot (LvS) | The Liverpool Scottish Regiment |
| LL | Denotes that a ship is fitted for magnetic minesweeping |
| LL | Latitude and Longitude |
| LLEandLLV | Landing Lighters |
| LLF | Light Liaison Flight |
| LLTU | Leigh Light Training Unit |
| LLV | Loop Laying Vessel |
| LMB | Light Mortar Battery |
| LMB | Light Mortar Battery - front line unit of light mortars used for direct fire support |
| LMB | Light Mortar Battery |
| LMG | Light Machine Gun |
| LMG | Light Machine-Gun |
| LMG | Light Machine Gun |
| LMHRCAMC | Lauzon Military Hospital, Royal Canadian Army Medical Corps |
| LMHRCAMC | Lethbridge Military Hospital, Royal Canadian Army Medical Corps |
| LMHRCAMC | Lewisporte Military Hospital, Royal Canadian Army Medical Corps |
| LMHRCAMC | London Military Hospital, Royal Canadian Army Medical Corps |
| LMHRCAMC | Longueuil Military Hospital, Royal Canadian Army Medical Corps |
| LMS | London, Midland and Scottish (Railway) |
| LMU | Landline Maintenance Units |
| LN | Quebec-Labrador convoy |
| LNER | London and North-Eastern Railway |
| LNLanR | Loyal North Lancashire Regiment |
| LNNo | List of Navy Numbers |
| LNRKS. | Lanarkshire |
| LNSF | Light Night Striking Force, of Mosquitoes of 8 Group |
| LO | Liaison Officer |
| LO | Liaison Officer |
| LOAC | Law of Armed Conflict |
| LOB | Left out of battle |
| LOC | Locate of Location |
| LOCN | Location |
| LOCO | Liaison Officers, Combined Operations |
| LOCSTATS | Location Statement |
| LOD | Line of Departure |
| LofC | Line(s) of Communication |
| LofCFSPS | Line of Communication Field Security Police Station |
| LofCPSCPC | Line of Communication Provost Section C. Provost Corps |
| LofCS(P)CGRU | Line of Communication Section (Provost) Canadian General Reinforcement Unit |
| LofCSRCCS | Line of Communication Signals, Royal Canadian Corps of Signals |
| LofCTrpsSerIncr | Line of Communication Troops Service Increment |
| LOG | Logistic |
| LOG | Logistics |
| LOND | London |
| LOND SCOT | London Scottish (TA) |
| LOND SCOT | London Scottish |
| LondR | London Regiment |
| LONG | Longitude |
| LonGaz | London Gazette - official British government publication of decorations, honours and promotions |
| LONN | Liaison Officer Norwegian Navy |
| LOR | Lorried or lorryborne |
| LOR | Lorried or Lorryborne |
| Lorn Scots | The Lorne Scots (Peel, Dufferin and Halton Regiment) |
| lorry | cargo motor vehicle |
| LOS | Line Of Sight |
| LOS | Line of Sight |
| Loth&BordH | Lothian and Border Horse |
| LOTHIANS | Lothians and Border Yeomanry (TA) |
| LOU | Localization of Units |
| Lov | The Lovat Scouts Regiment |
| LOV | Lovat Scouts |
| LOVATS | Lovat Scouts (TA) |
| LOWLAND R | Lowland Regiment |
| LOYALS | Loyal Regiment (North Lancashire) |
| LOYALS | The Loyal Regiment (North Lancashire) |
| Loyals (Loy) | The Loyal Regiment (North Lancashire) |
| LP | Listening Post |
| LP | Listening Post or Low Power |
| LPC | Last Pay Certificate |
| LPF | Last Post Fund |
| LPhoto | Leading Photographer |
| LPODRCOC | Longue Pointe Ordnance Depot, Royal Canadian Ordnance Corps |
| LPS | Lord Privy Seal |
| LPtlmn | Leading Patrolman |
| LR | R?giment de L?vis (French only) |
| LR | Layer Rating |
| LR | Layer Ratings |
| LR | Lower rate or Light Railways |
| LRAM | Licentiate, Royal Academy of Music |
| LRATGW | Long Range Anti Tank Guided Weapon |
| LRB | The London Rifle Brigade |
| LRCR | Long Range Communications Relay |
| LRdeC | Le R?giment de Chateauguay (French only) |
| LRdeH | Le R?giment de Hull (French only) |
| LRDF | Long Range Development Flight |
| LRDG | Long Rang Desert Group |
| LRDG | Long Range Desert Group |
| LRDU | Long Range Development Unit |
| LRFU | Long Rang Ferry Unit |
| LRS | Legislative and Regulatory Services |
| LRS | Light Repair Section |
| LRSW | Long Range Sniper Weapon |
| LRWE | Long Range Weapons Research Establishment |
| LRWRE | Long Range Weapons Research Establishment |
| LS | Leading Seaman |
| LS | Landing Ships |
| LS | Leading Seaman or Land Service |
| LS & GCM | Long Service and Good Conduct Medal |
| LS(CASF) | Lorne Scots (Peel, Dufferin & Halton Regiment), Canadian Active Service Force |
| LS(Postal) | Leading Seaman (Postal) |
| LS(R) | Leading Seaman (Regulating) |
| LS(Records) | Localization Section (Records) |
| LSA | Leading Stores Assistant |
| LSA | Leading Supply Assistant |
| LSBA | Leading Sick Berth Attendant |
| LSc | The London Scottish Regiment |
| LSC | Landing Ship, Carrier (Derrick-hoisting) |
| LSCTC | Light Scout Car Training Centre |
| LSD | landing Ship Dock |
| LSD | Landing Ship, Dock (U.S.) |
| LSDI | Large Scale Deliberate Intervention |
| LSE | Landing Ship, Emergency Repair |
| LSgt | Lance Sergeant |
| LSH | Lord Strathcona's Horse (Royal Canadians) - cavalry unit first established for the South African War |
| LSI | Landing Ship, Infantry |
| LSig | Leading Signalman |
| LSjt | Lance Sergeant |
| LST | Landing Ship, Tank |
| LST | Landing Ship Tank |
| LSto | Leading Stoker |
| LSto(FF) | Leading Stoker (Fire Fighter) |
| LStwd | Leading Stewart |
| LSVW | Light Support Vehicle Wheeled |
| LSW | Light Support Weapon |
| LT | Low tension or line telegraphy |
| LT | Lieutenant |
| Lt | Light |
| LT | Line telegraphy or low tension |
| LT | Lieutenant or Captain |
| Lt | Light |
| Lt | Lieutenant |
| LT | Lieutenant or Light or Local Time or Low Tension (voltage) or Line Telegraph |
| LT | Line Telegraphy or Low Tension |
| LT (N) | (N) Lieutenant (Navy) |
| LT COL | Lieutenant-Colonel |
| Lt INF | Lieutenant Infirmiere |
| Lt-Col | Lieutenant-Colonel |
| LT-Gen | Lieutenant-General |
| Lt. | Light |
| LT(jg) | Lieutenant (junior grade) or First Lieutenant |
| LTAS | Leave Travel Assistance |
| LtCdr | Lieutenant Commander |
| Ltech | Electronic Technician (Sea) |
| LTel | Leading Telegraphist |
| LTI | Link Trainer Instructor |
| LTO | Leading Torpedoman |
| LTP | Long Term Planning |
| LTW | Lyneham Transport Wing |
| LTW | Landing Transport and WORKSHOP (COMPANY) |
| LUP | Lying Up Point |
| LUP | Lying Up Point |
| LVoltdeQ | Les Voltigeurs de Qu?bec (French only) |
| LVS | Logistics Vehicle System |
| LVT | Landing Vehicle, Tracked |
| LW | Light Warning (radar) |
| LW | Long Wave |
| LWCA (TC) | 'L'' Wing Canadian Army (Training Centre) |
| LWCC | Lightweight Combat Clothing |
| LWOP | Leave Without Pay and Allowances |
| LWOP | Leave Without Pay |
| LWP | Leave With Pay |
| LWtr | Leading Writer |
| LWU | Light Warning Unit |
| LX | Left Section |
| LY | The Leicestershire Yeomanry (Prince Albert's Own) Regiment |
| LZ | Landing zone |
| LZ | London Division |
| LZ | Landing Zone |
| M | Metalsmith Make plans, time and cost estimates. Work in copper and brass. Temper metals, repair damage. Test for watertightness. |
| M | Matron |
| M | Miscellaneous |
| M | Major |
| M | Minister, National Defence |
| M | Minelayer |
| M | Mixed or Married or Medical or Movements |
| M & D | Medals and Decorations |
| M & S | Munitions and Supply |
| M Div | Main Engines |
| M of S | Ministry of Supply |
| M.T. | Motor Transport (MT) |
| M'CHESTER | Manchester |
| M(N) | Minister for Naval Services |
| M(No) | Captain "M" (Number) Mine Laying Squadron |
| M/A | Meal Allowance |
| M/C DR | Motorcycle Despatch Rider |
| M/F | Medium Frequency |
| m/n | Marginally Named |
| M/S | Minesweeper(s) |
| m/s | Meters per second |
| M/SAux | Minesweepers Auxiliary |
| M/SBan | Minesweepers Bangor |
| M/SBas | Minesweepers Bassett |
| M/SMotor | Minesweepers Motor |
| M/SWood | Minesweepers Wooden |
| M/T | Motor Transport |
| M&D | Medicine and Duties; or Medals and Decorations |
| M&D | Medals & Decorations - list of theatre medals or decorations received for military service, as well as special citations |
| M&D | Medicine and Return to Duty |
| M&I | Messes and Institutes |
| M&JWS | Mountain & Jungle Warfare School |
| M&S | Modelling & Simulation |
| M&Wasst | Munitions and Weapons Assistant |
| M&Wtech | Munitions and Weapons Technician |
| M1 | Army Service Corps, Mechanical Transport Section |
| M1c | Metalsmith, First Class |
| M2 | Army Service Corps, Electricians |
| M2c | Metalsmith, Second Class |
| MA | Managing Authority |
| MA | Military assistant or Military Attache |
| MA | Meal Allowance |
| MA | Medical Assistant |
| MA | Master |
| MA | Military Attache or Military Assistant or Military Advisor |
| MA/SBI | Motor Torpedo Boat fitted with asdic set and depth charges |
| MA/STU | Mobile Asdic Training Unit |
| MA&S DESKTOP | Desktop Materiel Acquisition and Support Desktop |
| MAA | Mutual Aid Agreement |
| MAA | Maintenance Anti-Aircraft |
| MAA | Medium Anti Aircraft (Royal Canadian Artillery) |
| MAA | Master at Arms |
| MAAD | Manual of Anti-Aircraft Defence |
| MAAF | Mediterranean Allied Forces; or Malayan Auxiliary Air Force |
| MAAF | Mediterranean Allied Air Forces |
| MAC | Motor ambulance convoy |
| MAC | Mediterranean Air Command |
| MAC | Motor Ambulance Convoy |
| MAC | Minesweeping Craft |
| MAC | Merchant Aircraft Carriers |
| MAC | Merchant-Ship Aircraft Carrier |
| MAC | Minesweeping Attendant |
| MAC | Motor Ambulance Car or Convoy |
| MAC | Mediterranean Air Command or Motor Ambulance Convoy or Macadam |
| MACAF | Mediterranean Allied Coastal Air Force |
| MACH | Machinist |
| Mach | Machinist |
| MachAccOp | Machine Accounting Operator |
| MACP | Medic Air Command Post |
| MACR(A)D | (Manitoba) Armoured Car Regiment (Armoured) Division |
| MACRCAMC | Motor Ambulance Convoy, Royal Canadian Army Medical Corps |
| MACRI | Maritime Atlantic Coastal Routing Instructions |
| MAD | Marine Acceptance Depot |
| MAD | The Madras Regiment |
| MAD | Magnetic Air Detector |
| MAED | Marine Aircraft Experimental Depot |
| MAEE | Marine Aircraft Experimental Establishment |
| MAEU | Marine Aircraft Experimental Unit |
| MAFIS | Midlands Area Flying Instructors School |
| MAG | Magazine or magnetic |
| mag | Magazine |
| Mag | Magnetic |
| MAG | Magazine or Magnetic |
| MAGU | Master Gunner |
| MAINT | Maintain, maintained or maintenance |
| MAINT | Maintenance |
| Maint. | Maintenance |
| MAJ | Major |
| MAJ | Major |
| MAJ GEN | Major-General |
| Maj-Gen | Major-General |
| MAJAID | Major Air Disaster |
| MAMS | Mobile Air Movement Section |
| Man | Manitoba |
| MANCH | Manchester Regiment |
| Manch (Man) | The Manchester Regiment |
| MANCH R | The Manchester Regiment |
| ManchR | Manchester Regiment |
| MANSR | Miramichi Area North Shore Regiment |
| MAO | Medical Associate |
| MAP | Ministry of Aircraft Production |
| MARCOM | Maritime Command |
| MARE | Maritime Engineering |
| MAREL | Moveable Air Reconnaissance Exploitation Unit |
| MarEngT | Marine Engineering Technician |
| MARI | Mercantile Atlantic Routing Instructions |
| MARS | Maritime Surface and Sub-surface |
| MARURCOC | Mobile Ammunition Repair Unit, Royal Canadian Ordnance Corps |
| MASFS | Midlands area School of Special Flying |
| MASM | Managing Authority System Manager |
| MASR&CF | Malta Air Sea Rescue & Communications Flight |
| MATAF | Mediterranean Allied Tactical Air Forces |
| MATP | Mobilization Assignment Training Plan |
| MATT | Mess Attendant |
| MATZ | Military Air Traffic Zone |
| MAX | Maximum |
| MB | Motorboat |
| MB | Medal of Bravery |
| MB | Military Band |
| MB | Mervian Brigade or Medium Bomber |
| MB(EGB) | Military Band (Esquimalt Garrison Band) |
| MB(M) | Motordrome Barracks (Montreal) |
| MBC | Motorboat Crewman |
| MBDR | Master Bombardier (MCpl in the Artillery) |
| MBE | Member of the Order of the British Empire |
| MBE | Order of the British Empire (Member) |
| MBE | Member of the Most Excellent Order of the British Empire |
| MBLRCAMC | Mobile Bacteriological Laboratory, Royal Canadian Army Medical Corps |
| MBLU | Mobile Bath & Laundry Units |
| MBM1 | Soldiers Pay Book |
| MBRCA | Medium Battery, Royal Canadian Artillery |
| MBSSM | Medical Board Sault St. Marie |
| MBT | Main Battle Tank |
| MBTC | Mines Booby Traps Course |
| MBU | Mobile Bath Unit |
| MBURCOC | Mobile Bath Unit, Royal Canadian Ordnance Corps |
| MC | Military Cross |
| MC | Movement control or motor-cycle |
| MC | Motor-cycle or movement control |
| MC | Military Cross - award given to officers for specific act(s) of bravery, or for meritorious service |
| MC | Memorial Cross |
| MC | Mobile Canteen |
| MC | Motorcycle |
| MC | Motorcycle Course |
| MC | Military Cross or Motorcycle or Movement Control or Message Centre |
| MC | Mule Company |
| MC | Mule Company |
| MC of S | Military College of Science |
| MC-M | Officers of the Merchant Marine Reserve appointed for general service in the Medical Corps. |
| MC-V (G) | Officers of the Volunteer Reserve appointed for general service in the Medical Corps. |
| MC-V (S) | Officers of the Volunteer Reserve appointed for special service in the Medical Corps. |
| MC(I) | Mule Convoy (India) |
| Mc/s | Megacycles per second |
| mc/s | Megacycles |
| MC&TTS | Malta Communication & Target Towing Flight |
| MCA | Ministry of Civil Aviation |
| MCC | Military Career Counselor |
| MCC | Military Career Counsellor |
| MCC&FF | Maintenance Command Communication and Ferry Flight |
| MCD | Manager Constructive Dept. |
| MCDR | Motorcycle Despatch Rider |
| MCDV | Maritime Coastal Defence Vessel |
| MCH | Malton Convalescent Hospital |
| MCI | Mercantile Convoy Instructions |
| MCJTF | Maintenance Command Jet Training Flight |
| MCLOS | Motor Contact Liaison Officers |
| MCMG | Motorcycle Machine Gun |
| MCMHRCAMC | Maple Creek Military Hospital, Royal Canadian Army Medical Corps |
| MCMHRCAMC | Macdonald College Military Hospital, Royal Canadian Army Medical Corps |
| MCO | Movement Control Officer or Motor Contract Officer |
| MCOIN | Maritime Command Operational Information System |
| MCPL | Master Corporal |
| MCRCAMC | Medical Centre, Royal Canadian Army Medical Corps |
| MCS | Metropolitan Communication Squadron |
| MCS(C) | Movement Control Staff (Canada) |
| MCS(C) | Motor Landing Craft Carrying Ship |
| MCSP | Maintenance |
| MCTAP | Military Civilian Training Accreditation Program |
| MCU | Marine Craft Unit |
| MCU | Mosquito Conversion Unit; or Meteorological Conversion Unit |
| MCU | Movement Control Unit |
| MCW | Modulated Continuous Wave |
| MD | Military District |
| MD | Manning Depot |
| MD | Military Depot - designated military administrative areas in Canada (13 in number) |
| MD | Military District - (or Depot) designated military administrative areas in Canada (13 in number) |
| MD | Military District or Mine Depot or Message Dropping |
| Md'Hon | M?daille d'Honneur (France) |
| MD#5&CCVC | Military District #5 & Camp Commander Valcartier Camp |
| MD1 | Military District 1 Western Ontario (London) |
| MD11 | Military District 11 British Columbia (Victoria) |
| MD12 | Military District 12 Saskatchewan (Regina) |
| MD13 | Military District 13 Alberta (Calgary) |
| MD2 | Military District 2 Central Ontario (Toronto) |
| MD3 | Military District 3 Eastern Ontario (Kingston) |
| MD4 | Military District 4 Western Quebec (Montreal) |
| MD5 | Military District 5 Eastern Quebec (Quebec) |
| MD6 | Military District 6 Maritime Provinces (Halifax) |
| MDA | Main Defensive Area |
| MDB | Military Detention Barracks |
| MDBBO | Military Detention Barracks Brampton, Ontario |
| MDBSBCPC | Military Detention Barracks Stanley Barracks Canadian Provost Corps |
| MDC | Mobile Deperming Craft |
| MDC | Motor Driver Company (ATS) or Mobile Defence Company |
| MDCU | Military Disembarkation Camp Unit |
| MDG | Medical Director-General |
| MDHQS | Military District Headquarters Staff |
| MDS | Main Dressing Station |
| MDS | Main Dressing Station |
| MDU | Mobile Deperming Unit |
| MDU | Military Dispersal Unit |
| ME | Middle East |
| ME | Messerschmitt |
| ME | Mechanical Equipment |
| ME | Middle East or Military Engineering |
| MEAC | Middle East Air Command |
| MEAC | Military Engineers Association of Canada |
| MEAC | Middle East Air Command |
| MEAF | Middle East Air Force |
| MEAF | Middle East Air Force |
| MEAFITF | Middle East Air Force Instrument Training Flight |
| MEAFTTU | Middle East Air Force Target Towing Unit |
| MEAS | Middle East Armament School |
| MECGS | Middle East Central Gunnery School |
| MECH | Mechanic, mechanical or mechanized |
| MECH | Mechanized |
| Mech | Director of Mechanization |
| Mech | Mechanic, mechanical or machanized |
| MECH | Mechanized or Mechanic or Mechanical |
| Mech. | Mechanical |
| MechEqpt(Pk)(Coy) | Mechanical Equipment (Park) (Company) |
| MechTpr | Mechanical Transport |
| MED | Medium or medical |
| Med | Medium |
| med | Medical |
| med | Medium |
| Med | Mediterranean |
| MED | Manager Engineering Dept. or Mediterranean and Red Sea Area |
| MED | Medical or Medium |
| Med-Evac | Medical Evacuation |
| Med. | Medium |
| MedA | Medical Assistant |
| MedBd | Medical Board |
| MedCTR | Medical Centre |
| MEDME | Mediterranean and Middle East |
| Meds | Director General of Medical Services |
| MEF | Middle East Forces |
| MEF | Mediterranean Expeditionary Force |
| MEF | Mesopotamian Expeditionary Force |
| MEF | Middle East Forces |
| MEFC | Middle East Ferry Control |
| MEIRI | Mercantile East Indies Routing Instructions |
| MEL | Medical Employment Limitations |
| MELF | Middle East Land Forces |
| MELF | Middle East Land Force |
| MENVTS | Middle East Night Vision Training School |
| MEO | Mechanical Equipment Operating |
| MEO | Mercantile Equipment Office (Naval) |
| MEP | Mehanical Equipment Park Company |
| MEP&AP | Middle East Pilot & Aircrew Pool |
| MERI. | Merionethshire |
| MESPSRCE | Mechanical Equipment Spare Parts Section, Royal Canadian Engineers |
| MESRCECMF | Mechanical Equipment Section, Royal Canadian Engineers, Central Mediterranean Force |
| MESupt | Mobile Equipment Superintendent |
| MET | Meteorological or meteorology |
| MET | Meteorology or meteorological |
| MET | Meteorological or Meterology or Miscellaneous Enemy Transport |
| MET RES | Res Meteorological Research |
| METech | Mobile Equipment Technician |
| MetO | Meteorological Observer |
| METS | Middle East Training School |
| MetTech | Meteorological Technician |
| MEW | Microwave Early Warning (radar) |
| MEW | Ministry of Economic Warfare |
| MEXE | Mechanical Equipment Experimental Establishment |
| MF | Mediterranean Fleet |
| MF | Medium Frequency |
| MFA | Mercantile Fleet Auxiliary |
| MFB | Master File Maintenance |
| MFB1444 | Re/Engagement Form - Non-Permanent Active Militia |
| MFB1481 | Absentees and Deserters - Transportation particulars |
| MFB1482 | Absentees and Deserters - Incidental Expense Statement |
| MFB227 | Medical History of an Invalid |
| MFB235 | Attestation Paper - Permanent Force |
| MFB241 | Discharge Certificate - Permanent Force of Canada (Duplicate copy of) |
| MFB241a | Discharge Certificate - Permanent Force of Canada (Duplicate copy of - French) |
| MFB241b | Discharge Certificate of Permanent Force of Canada |
| MFB264 | Charge Report |
| MFB287 | Appointment to a Commission |
| MFB292 | Morning Sick Report |
| MFB313a | Medical Case History Sheet |
| MFB313b | Medical History Sheet - Permanent Force |
| MFB350 | Certificate of Discharge - Non-Permanent Active Militia |
| MFB375 | Court of Inquiry - Record of Declaration |
| MFB465 | Dental History Sheet |
| MFB483 | Description of a Deserter |
| MFC | Mortar Fire Controller |
| MFC800 | Individuals Clothing and Equipment statement |
| MFD930a | Last Pay Certificate Canadian Active Service Force |
| MFH | Military Field Hospital |
| MFH | Military Field Hospital |
| MFM | Master File Maintenance |
| MFM1 | Officer's Declaration Paper |
| MFM1&2b | Follow Sheet for Master File Maintenance 1 and Master file Maintenance 2 |
| MFM10 | Form of Will |
| MFM103 | Enrolment Form National Resources Mobilization Act of 1940 Personnel |
| MFM12 | Certificate of Medical Unfitness |
| MFM141 | Certificate of Medical Unfitness national Resources Mobilization Act of 1940 |
| MFM141 | Index Pay Card (Pay) |
| MFM150 | Certificate of Medical Examination, Canadian Women's Army Corps |
| MFM153 | Attestation From, Canadian Women's Army Corps |
| MFM154 | Canadian Women's Army Corps Discharge Certificate |
| MFM16 | Application for Dependent's Allowance (Wife & Child) |
| MFM16a | Application for Dependent's Allowance (Other Supplementary) |
| MFM16b | Application for Dependent's Allowance (Other Dependents) |
| MFM16d | Certificate of Examination (Births, Marriages, Deaths) |
| MFM16e | Canadian Active Service Force Request for Investigation |
| MFM16f | List of Documents (Evidence of Claim) |
| MFM16g | Card Re: Application for Dependent's Allowance |
| MFM17 | Assignment of Pay Form (All Ranks) |
| MFM18 | Stop Payment Form (Assigned Pay) |
| MFM181 | Fingerprint Form |
| MFM182 | Identification Form |
| MFM18a | Stop Payment Form (Assigned Pay) |
| MFM19 | Changes in Assigned Pay |
| MFM2 | Attestation Papers, Other Ranks, English |
| MFM216 | Certificate of Apprehension (Absent without leave or Deserter) Canadian Women's Army Corps |
| MFM23 | Proceedings on Discharge |
| MFM24 | Certificate of Service General Order 139/39 |
| MFM30 | Records Cards |
| MFM30 | X-Ray, Inspection of Chests |
| MFM4 | Service and Casualty Form (Part 1) |
| MFM55 | Particulars of Family |
| MFM55 | Receipt for a Soldier's Documents |
| MFM6 | Field Conduct Sheet |
| MFM7 | Discharge Certificate - Original - (linen) |
| MFM8 | Certificate of Service, Officers and Nursing Sisters |
| MFM81 | Proceedings of an Officer or Nursing Sister |
| MFM88 | Protection Certificate |
| MFM9 | Extension of Service - Permanent Force |
| MFM94 | Application for War Service Badge 'General Service Class' |
| MFM99 | Voluntary Transfer Form |
| MFNU | Malta Night Fighter Unit |
| MFO | Military forwarding officer |
| MFO | Military Forwarding Officer |
| MFP | Military Foot Police |
| MFP | Military Foot Police |
| MFPS | Mobile field photographic section |
| MFPS | Mobile Field Photographic Section |
| MFPU | Mobile Field Photographic Unit |
| MFRC | Military Family Resource Centre |
| MFS | Military Forwarding Service |
| MFV | Motor Fishing Vessel |
| MFW | Military Foreman of Works |
| MFW2463 | Report of Death of a Soldier (Location of grave) |
| MFW2570 | Report of Death of a Soldier (Location of grave) |
| MG | Machine Gun; or Motor Generator |
| MG | Messenger |
| MG | Machine Gun |
| MG | Medical Guard |
| MG | Machine Gun |
| MGA | Major General in charge of Administration |
| MGB | Motor Gun-Boat |
| MGB | Motor Gunboat |
| MGC | Machine Gun Corps |
| MGCCav | Machine Gun Corps Cavalry |
| MGCT | Major-General Combined Training |
| MGEN | Major General |
| MGGS | Major General - General Staff |
| MGGS | Major General, General Staff |
| MGGS | Major-General General-Staff |
| MGHU | Machine Gun Holding Unit |
| MGO | Master General of the Ordinance |
| MGO | Master General of the Ordnance |
| MGO | Master General of Ordnance |
| MGRA | Major General, Royal Artillery |
| MGRA | Major-General Royal Artillery |
| MGRU | Machine Gun Reinforcement Unit |
| MGS | Mobile Gun System |
| MGS | Machine Gun Squadron |
| MGSP | Mobile Glider Servicing Party |
| MGTC | Machine Gun Training Centre |
| MGTC(NRMA) | Machine Gun Training Centre (National Resources Mobilization Act of 1940) |
| MGTC(RF) | Machine Gun Training Centre (Reserve Fleet) |
| MH | Military Hospital |
| MHC | Miscellaneous Harbour Craft |
| MHHRCAMC | Montmagny Military Hospital, Royal Canadian Army Medical Corps |
| MHHRCAMC | Montreal Military Hospital, Royal Canadian Army Medical Corps |
| MHHRCAMC | Mulgrave Military Hospital, Royal Canadian Army Medical Corps |
| MHLRCAMC | Mobile Hygiene Laboratory, Royal Canadian Army Medical Corps |
| MI | Military Intelligence |
| MI | Military Intelligence |
| MI2H | Miles in two hours |
| MIA | Missing in Action |
| MIA | Missing in Action - casualty whose whereabouts and status (alive, dead or captured) after an action are unknown |
| MIA | Mounted Infantry |
| MIA | Missing in Action |
| MIC | Medical Instructions Camp |
| MICV | Mechanized Infantry/Cavalry Vehicle |
| MID | Mentioned in Dispatches |
| Mid | Midshipman |
| MID | Mentioned in Despatches - commendation by commanding officer for outstanding or meritorious service |
| MID | Mentioned in Dispatches |
| Midd'xR | Middlesex Regiment |
| MIDDX | Middlesex |
| MIDDX. | Middlesex |
| MIDL. | Midlothian |
| Midland | The Midland Regiment (Northumberland and Durham) |
| MidR | Midland Regiment |
| MIH | Miles in the hour |
| mih | Miles in the hour |
| MIL | Military |
| Mil | Military - organization responsible for defending a country or for the conduct of a war |
| MIL | Military |
| Mil. | Military |
| MILE | Military Engineering |
| MilHos | Military Hospital |
| MILITIA | The Reserve Force (RF) |
| MilMed | Military Medal for Good Service (Portugal) |
| MILO | Military Intelligence Liaison Officer |
| MIN | Minute |
| Min | Minister |
| MIN | Mine, minecraft (U.S.) |
| MIN | Minute |
| MIN TECH | Tech Ministry of Technology |
| Min(A) | Minister for Air |
| MIO | Maritime Interdiction Operations |
| MIR | Medical Inspection Room |
| MIS | Ministry of Information |
| MIS | Mercantile Intelligence Section (Naval) |
| Misc | Miscellaneous |
| Miss | Missing - location of an individual is unknown |
| Mit | Mitrailleuses |
| MJ | Major |
| MJGE | Major General |
| Mk | Mark (Model / Version) |
| MK | Mark |
| MKV | Mark V fire tender |
| ML | Molder Equip and work in foundry. Make castings. Use molding tools. Operate oil furnaces. |
| ML | Motor Launch |
| ML | Missing List |
| ML | Motor Launch |
| ML&BU | Mobile Laundry and Bath Unit |
| ML&FDU | Mobile Laundry & Forward Decontamination Unit |
| Ml1c | Molder, First Class |
| Ml2c | Molder, Second Class |
| MLB | Motor Landing Barge (U.S.) |
| MLB | Motor Lifeboat (GG) (U.S.) |
| MLBU | Mobile laundry and bath unit |
| MLC | Motor Landing Craft |
| MLI | The Mahratta Light Infantry Regiment |
| MLO | Military Liaison Officer or Military Landing Officer |
| MLO | Militry Landing Officer or Military Liasion Officer |
| MLOC | Minimum Level of Capability |
| MLRU | Mobile Land Repair Units |
| MLU | Maple Leaf Up |
| MLV | Mine Laying Vessels |
| MLVW | Medium Logistics Vehicle Wheeled |
| MM | Military Medal |
| MM | Machinist's Mate Operate main and auxiliary engines. Adjust, repair, and overhaul engines. Be familiar with ship's drainage systems, distilling plants, evaporators and pumps. |
| MM | Motor Mechanic |
| MM | Military Medal - medal for bravery awarded to other ranks (non-officers) |
| MM | Meteorologist's Mate |
| MM | Military Medal |
| MM1c | Machinist's Mate, First Class |
| MM2c | Machinist's Mate, Second Class |
| MME | Machinist's Mate E Engineman. |
| MMESTF/S | Mediterranean & Middle East Special Transport Flight/Squadron |
| MMEV | Multi-Mission Effects Vehicle |
| MMG | Medium Machine Gun |
| MMG | Machinist's Mate G Industrial gas generator mechanic. |
| MMG | Motor Machine Gun |
| MMG | Medium Machine Gun |
| MMG | Medium Machine Gun |
| MMGC | Motor Machine Gun Corps |
| MMHRCAMC | Magantic Military Hospital, Royal Canadian Army Medical Corps |
| MMHRCAMC | Mewata Military Hospital, Royal Canadian Army Medical Corps |
| MMHRCAMC | Mimico Military Hospital, Royal Canadian Army Medical Corps |
| MMHRCAMC | Monteith Military Hospital, Royal Canadian Army Medical Corps |
| Mmil | M?daille Militaire (France) (French only) |
| MML | Manual of Military Law |
| MMM | Member of the Order of Military Merit |
| MMP | Military Mounted Police |
| MMP | Miscellaneous Military Personnel |
| MMP | Military Mounted Police |
| MMP | Military Mounted Police |
| MMPITest | Minnesota Multiphasic Personality Inventory Test |
| MMR | The Manitoba Mounted Rifles Regiment |
| MMR | Machinist's Mate R Refrigeration mechanic. |
| MMR | Manitoba Mounted Rifles |
| MMR | Mercantile Marine Reserve |
| MMS | Motor minesweeper |
| MMS | Machinist's Mate S Shop machinist. |
| MMS | Mercantile Movements Section (Naval) |
| MMS | Motorcycle Maintenance School |
| MMTP | Military Medical Training Plan |
| MMU | Multi-National Medical Unit |
| MN | Mineman Carry and move mine cases, anchors, cables, lines, buoys. |
| MNB | Mobile Naval Base |
| MNBDO | Mobile Naval Base Defense Organization |
| MNBDO | Mobile Naval Base Defence Organization |
| MNBDO | Mobile Naval Base Defence Organisation |
| MNC | Merchant Navy Code |
| MND | Minister of National Defence |
| MNEU | Mission Navale Etats Unis, Washington |
| MNOPF | Merchant Navy Officer's Pension Fund |
| MNP | Merchant navy Privilege |
| MNS | Manager of Naval Stores |
| Mnvre | Manoeuvre |
| MO | Medical Officer (doctor) |
| MO | Medical Officer |
| MO | Meteorological Observer |
| MO | Meteorological Technician |
| MO | Medical Officer or Military Operations |
| MO I/C | Medical Officer In Command |
| MO(D) | Medical Officer (Dental) |
| MO(s) | Militia Order |
| MOA | Ministry of Aviation |
| MOB | Mobile or mobilization |
| MOB | Man overboard |
| MOB | Mobile or Mobilization |
| MOB FD BTY | Mobile Field Battery |
| MOB VET SEC | Mobile Veterinary Section |
| Mobn | Mobile or mobilization |
| MOC | Military Occupation Code |
| MOC | Military Operation Code |
| MOCOMP | Maintenance of Competency (Physicians Only) |
| MOD | Ministry of Defence (UK) |
| MOD | Ministry of Defence |
| MOD(PE) | Ministry of Defence (Procurement Executive) |
| MOEF | Mid-Ocean Escort Force |
| MOF | Master of the Fleet |
| MofWT | Ministry of War Transport |
| MOG | Medical Officer of the Guard |
| MoMM | Motor Machinist's Mate Operate machine tools. Operate and maintain internal combustion engines and engine auxiliaries. Knowledge of pressure and air systems. Be familiar with electrical apparatus. |
| MoMM1c | Motor Machinist's Mate, First Class |
| MoMM2c | Motor Machinist's Mate, Second Class |
| MOMP | Mid Ocean Meeting Point |
| Mon | The Monmouthshire Regiment |
| MON | Monmouthshire Regiment |
| MON. | Monmouthshire |
| MONMOUTH R | Monmouthshire Regiment |
| MonmouthR | Monmouthshire Regiment |
| MONTG. | Montgomeryshire |
| MOPA | Military Objective Previously Attacked |
| MOPP | Mission Oriented Protective Posture |
| MOR | Mortar |
| MORAY | County of Moray |
| MORT | Maintenance Officer Rescue Tugs |
| MORU | Mobile Operations Room Unit |
| MOS | Ministry of Supply |
| MOS | Marine Observation School; or Military Occupational Structure |
| MOS | Ministry of Supply |
| MOSID | Military Occupation Structure Identification Description |
| MOT | Motor or motorized |
| MOT | Motor or Motorised |
| Mot CO | Motor Contact Officer |
| Mot. | Motor |
| MOTP | Medical Officer Training Plan |
| MOTU | Marine Operational Training Unit |
| MOU | Memorandum of Understanding |
| MOUT | Military Operations in Urban Terrain |
| MOV | Movement |
| Mov | Movement Control Staff |
| MOV O | O Movement Order |
| Mov. | Movements |
| MP | Military police or meeting point |
| MP | Memorial Plaque |
| MP | Military Police |
| MP | Military Policeman |
| MP | Muster Parade |
| MP | Military Police or Meeting Point or Member off Parliament |
| MP&DB | Main Party |
| MP&DB | Military Prison & Detention Barracks |
| MP&DB | Military Prison and Detention Barracks |
| MPB | Mean Point of Burst |
| MPCC | Military Police Complaints Commission |
| MPCRI | Mercantile Pacific Coastwise Routeing Instructions |
| MPD | Military Prisons Department |
| MPDB | Military Provost Detention Barracks |
| MPFC | Mobile Petrol Filling Company |
| mpg | Miles Per Gallon |
| MPH | Miles per hour |
| mph | Miles per Hour |
| MPI | Mean Point of Impact |
| MPI | Mean Point of Impact |
| MPIR | Military Police Investigation Report |
| MPO | Moving Picture Operators |
| MPRI | Mercantile Pacific Routeing Instructions |
| MPRR | Members Personnel Record Rsum |
| MPS | Manning Priority System |
| MPSC | Military Provost Staff Corps |
| MPSC | Military Provost Staff Corps |
| MPSCAO/S | Mobile Printing Section Canadian Army Overseas |
| MPSU | Mobile Parachute Servicing Unit |
| MPTC | Mobile Petrol Transport Company |
| MPU | Message Picking Up |
| MQMS | Mechanic Quartermaster-Sergeant |
| MR | Master-at-Arms |
| MR | Mounted Rifles |
| MR | R?giment de Maisonneuve (French only) |
| MR | R?giment de Montmagny (French only) |
| MR | Motor Regiment |
| MR | Medium Regiment |
| MR | Midland Regiment |
| MR | Mobilization & Recruiting Section of Organization |
| MR SQUADRON | squadron Medium Reconnaissance squadron |
| MRAF | Marshal of the Royal Air Force |
| MRC | Military Research Centre |
| MRD | Manitoba Regimental Depot |
| MRD | Moncton Recruiting Depot |
| MRD | Manitoba Regimental Depot - facility behind front used to assemble men and to store and administer equipment and materials |
| MRE | Meal Ready to Eat (rations) |
| MRES | Missing Research and Enquiry Service |
| MREU | Missing Research and Enquiry Unit |
| MRF | Meteorological Research Flight |
| MRF | Les Fusiliers de Mont-Royal (French only) |
| MRS | Maritime Reconnaissance School |
| MRS | Medical Receiving Station |
| MRSS | Medium Regiment Signals Section |
| MRT | Mountain Rescue Team |
| MRU | Medical Rehabilitation Unit; or Mobile Radio Unit |
| MS | Master Seaman (Navy) |
| MS | Minesweeper |
| MS | Motor Ship (U.S.) |
| MS | Medical Staff |
| MS | Military Secretary |
| MS | Master Sergeant |
| MS | Mechanical Specials |
| MS | Master Seaman or Minesweeper or Military Secretary |
| MS(No) | Senior Officer (Number) Minesweeping Flotilla |
| MSA | Military Service Act (Canada 1917) |
| MSB | Medical Selection Boards |
| MSB | Military Service Branch |
| MSC | Medical Staff Corps |
| MSD | Medical Stores Depot |
| MSD | Munitions & Supply Depot |
| MSD | Main Supply Depot |
| MSE | Mobile Support Equipment |
| MSEO | Mobile Support Equipment Officer |
| MSEOP | Mobile Support Equipment Operator |
| MSF(No) | (Number) Minesweeping Group |
| MSFF | Moroccan Sea Frontier |
| MSFU | Merchant Ship Fighter Unit |
| MSG | Message |
| MSG | Maintenance Support Group |
| MSG(No) | (Number) Minesweeping Group |
| Msgt | Master Sergeant |
| MSL | Missile |
| MSL | Mean Sea Level |
| MSLC | Mount Saint Louis Contingent |
| MSLSH | (Mechanized) Squadron Lord Strathcona's Horse (Royal Canadians) |
| MSM | Mainstream Media |
| MSM | Meritorious Service Medal |
| MSM | Mechanic Sergeant-Major |
| MSM | Meritorious Service Medal |
| MSR | Morse Slip Reader |
| MSR | Main Supply Routes |
| MSRTM | Marine Superintendent Rescue Tugs Mediterranean |
| MSS | Mechanist Staff Sergeant |
| MSSC | Military Store Staff Corps |
| MSTech | Mechanical Systems Technician |
| MStGeo | Medal of Saint George (Russia) |
| MSU | Mobile Signals Unit, Maintenance Sub Unit |
| MT | Mechanical Transport; or Motor Transport |
| MT | Militia |
| MT | Military |
| MT | Motor Transport |
| MT | Mechanical Transport |
| MT | Mechanical or Motor Transport |
| MTAP | Military Training Assistance Program |
| MTB | Motor Torpedo Boat |
| MTB | Motor Torpedo Boat |
| MTBD | Mechanical Transport Base Unit |
| MTC | Militia Training Centre |
| MTC(A&TS) | Military Training Centre (Administrative & Training Staff) |
| MTCDS | Military Training Centre District School |
| MTCRCOC | Mechanics Training Centre, Royal Canadian Ordnance Corps |
| MTCT | Militia Training Centre Trainees |
| MTD | Mechanical Transport Driver |
| MTD | Mounted |
| mtd | Mounted |
| MTDGB(B) | Mechanical Transport Depot Guard Borden (Borden) |
| MTDRCOC | Mechanized Transport Depot, Royal Canadian Ordnance Corps |
| MTE | Mechanical Training Establishment |
| Mtech | Metals Technician |
| MTF | Mauritius Territorial Force |
| mtg | Mounting |
| MTHU | Mechanical Transport Holding Units |
| MTICMHQRCOC | Mechanical Transport Inspectorate Canadian Military Headquarter, Royal Canadian Ordnance Corps |
| MTIRCASC | Mechanical Transport Inspectorate, Royal Canadian Army Service Corps |
| MTIRCEME | Mechanical Transport Inspectorate, Royal Canadian Electrical and mechanical Engineers |
| MTLRU | Mechanical Transport Light Repair Unit |
| MtlTech | Metals Technician |
| MTMA | Military Terminal Maneuvering Area |
| MTMU | Mechanical Training Mobile Unit or Mobile Torpedo Maintenance Unit |
| MTN | Mountain |
| mtn | Mountain |
| Mtn. | Mountain |
| MTO | Mechanical Transport Officer |
| MTO | Motor Transport Officer |
| MTO | Mechanical Transport Officer (Air) |
| MTO | Mechanical Transport Officer |
| MTOC | Maintenance Training Officer Course |
| MTOC | Mechanical Training Officer Course |
| MTP | Main Teaching Point(s) |
| MTP | Military Training Pamphlet |
| MTR | Mechanical Transport Regiment |
| MTRU | Motor Transport Repair Unit |
| MTRU | Motor Transport Repair Unit |
| MTS | Motor Transport Service |
| MTS | Motor Transport Stores |
| MTSD | Mechanical Transport Stores Depot |
| MTSDRCOC | Mechanical Transport Sub Depot, Royal Canadian Ordnance Corps |
| MTSS | Mechanical Transport Servicing Section |
| MtStBSC | Mount St. Bruno Summer Camp (Bruno Training Battalion & Bruno Summer Camp Headquarters) |
| MTTD | Motor Transport Training Depot |
| MTTSCRCOC | Mechanical Transport Technical Stores Company, Royal Canadian Ordnance Corps |
| MTU | Mosquito Training Unit |
| MTVRD | Mechanical Transport Vehicle Reception Depot |
| MTW/SSRCOC | Mechanical Transport Workshop Section, Royal Canadian Ordnance Corps |
| MTW/SSRCOC | Military Training |
| MTW/SSRCOC | Mobilization Training Centre |
| MTW/SSRCOC | Movement Train |
| MU | Maintenance Unit |
| MU | Medically Unfit |
| MU | Maintenance Unit |
| MU | Maintenance Unit |
| MUG | Mid Upper Gunner |
| Mus | Musician Play standard band music. Read music at sight. |
| Mus | Musician |
| Mus | Muslim |
| Mus1c | Musician, First Class |
| Mus2c | Musician, Second Class |
| MUSC | Music |
| Muscn | Musician |
| MV | Master-At-Arms |
| MV | Muzzle Velocity |
| MV | Motor Vehicle |
| MV | Motor Vessel or Muzzle Velocity |
| MVAF | Malaya Volunteer Air Force |
| MVO | Member of the Royal Victorian Order |
| MVO | Member of the 4th or 5th Class of the Royal Victorian Order |
| MVOR | Movement Order |
| MVT | Movement |
| MvtCon | Movements Controller |
| MW | Maintenance Wing |
| MW,SSupt | Metals Workshops Superintendent |
| MWO | Master Warrant Officer |
| MWSS | Minor War Signal Station |
| MWT | (British) Ministry of War Transport |
| MWTelO | Marine Wireless Telegraph Operator |
| MX | Middlesex Regiment (Duke of Cambridge's Own) |
| MX | Memorial Cross |
| MX | Middlesex |
| Mx (Midx) | The Middlesex Regiment (Duke of Cambridge's Own) |
| MX YEO | Middlesex Yeomanry |
| Mx&H | The Middlesex and Huron Regiment |
| N | Northumbrian |
| N | Navigation |
| N | Nursing |
| N Div | Navigation (Quartermasters) |
| N Shore R | The North Shore (New Brunswick) Regiment |
| N STAFFS | North Staffordshire Regiment (The Prince of Wales's) |
| N Staffs (NStfs) | The North Staffordshire Regiment (The Prince of Wales's) |
| N STAFFS R | The North Staffordshire Regiment (The Prince of Wales's) |
| N YEO | Northamptonshire Yeomanry |
| N Yeo (NY) | The Northhampto |
