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| | BT INFANTRY TRAINING UNITS | |
| PIONEER UNITS | |
| PIR | |
| PLASTIC SURGERY UNITS | |
| PNR TRNG BN | |
| POLICE | |
| POLISH FORCES | |
| PORT CONSTRUCTION COMPANIES | |
| PORT MORESBY COAST ARTILLERY | |
| PORT OPERATING UNITS | |
| PORTUGUESE FORCES | |
| POST MASTER GENERAL'S DEPARTMENT | |
| POST OFFICES | |
| POSTAL UNITS | |
| POW AND INTERNMENT CAMPS | |
| PRAHRAN REGIMENT | |
| PRINCE OF WALES LIGHT HORSE | |
| PRINTING AND STATIONERY UNITS | |
| PROVOST UNITS | |
| PUBLIC RELATIONS UNITS | |
| PUNISHMENT UNITS | |
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| U BOATS | |
| U HEAVY BATTERY | |
| UN PEACEKEEPING FORCES | |
| | PT UNITED NATIONS PEACEKEEPING FORCES | |