| AACU | Army Air Co-Operation Unit |
| ACAS | Assistant Chief of the Air Staff + (P) Policy; (I) Intelligence; (O) Operations |
| ACM | Air Chief Marshal |
| ADC | Aide-de-Camp |
| ADGB | Air Defence of Great Britain |
| AFC | Air Force Cross |
| AFO | Allied Forces Committee |
| AFOSC | Allied Forces (Official) Sub-Committee |
| Air Cdre | Air Commodore |
| AM | Air Marshal |
| AMP | Air Member for Personnel |
| AMPC | Auxiliary Military Pioneer Corps |
| AMSO | Air Member for Supply and Organisation |
| AMT | Air Member for Training |
| AOC | Air Officer Commanding |
| AVM | Air Vice-Marshal |
| BMR | British Military Representative |
| C-in-C | Commander-in-Chief |
| CAS | Chief of the Air Staff |
| CIGS | Commander of the Imperial General Staff |
| CNC | Czechoslovak National Committee |
| CO | Commanding Officer |
| COS | Chiefs of Staff |
| COS 120 | Common name for paper 120 (1944) by the Chiefs of Staff Committee |
| D of M | Director of Manning |
| D of O | Director of Organisation |
| D of O(I) | Director of Operations (Intelligence) |
| D of P | Director of Postings |
| D of Plans | Director of Plans |
| DAAC | Director(ate) of Allied Air Co-Operation |
| DAFL | Director(ate) of Allied Air Co-Operation and Foreign Liaison |
| DCAS | Deputy Chief of the Air Staff |
| DFC | Distinguished Flying Cross |
| DGO | Director General of Organisation |
| DPS | Director of Personal Services |
| DSO | Distinguished Service Order |
| ERPC | Expansion and Re-equipment Policy Committee |
| Flt/Lt | Flight Lieutenant |
| Flt/Sgt | Flight Sergeant |
| FO | Foreign Office (British) |
| GDB | General Duties Branch |
| GHQ | General Headquarters |
| GOC | General Officer Commanding |
| Gp Capt | Group Captain |
| GR | General Reconnaissance |
| GRU | General Reconnaissance Unit |
| HFU | Home Ferry Unit |
| HO | Home Office (British) |
| JIC | Joint Intelligence Sub-Committee |
| LAC | Leading Aircraftman |
| MAC | Mediterranean Air Command |
| MAP | Ministry of Aircraft Production |
| MC | Military Cross |
| MNO | Ministry of National Defence (Czechoslovak) |
| MO | Medical Officer |
| MP | Member of Parliament (British) |
| MRAF | Marshal of the Royal Air Force |
| NCO | Non-Commissioned Officer |
| NEI | Netherland East Indies |
| OC | Officer Commanding |
| ORB | Operational Record Book |
| OTU | Operational Training Unit |
| PAF | Polish Air Force |
| PCG | Provisional Czechoslovak Government |
| Plt/Off | Pilot Officer |
| PM | Prime Minister |
| POL | Petrol, Oil and Lubricants |
| POTU | Polish Operational Training Unit |
| POW | Prisoner of War |
| PRC | Polish Resettlement Corps |
| PRO | Public Record Office (London) |
| PRU | Photographic Reconnaissance Unit |
| RAF | Royal Air Force |
| RAFVR | Royal Air Force Volunteer Reserve |
| RCAF | Royal Canadian Air Force |
| RFC | Royal Flying Corps |
| RNAAS | Royal Norwegian Army Air Service |
| RNNAS | Royal Norwegian Naval Air Service |
| RT | Radio Telephonist |
| SAO | Senior Air Officer |
| SASO | Senior Air Staff Officer |
| SEF | Single-Engined Fighter |
| SHAEF | Supreme Headquarters Allied Expeditionary Force |
| SHAPE | Supreme Headquarters Allied Powers Europe |
| Sqdn | Squadron |
| Sqn Ldr | Squadron Leader |
| TEB | Twin-Engined Bomber |
| TEF | Twin-Engined Fighter |
| USAAF | United States Army Air Force |
| USAF | United States Air Force |
| VC | Victoria Cross |
| VCAS | Vice Chief of the Air Staff |
| VE | Victory in Europe |
| VHA | Military Historical Archive (Prague) |
| VKPR | Military Office of the President (Czechoslovak) |
| Wg Cdr | Wing Commander |
| WO | Wireless Operator |