| AICBM | AnTI-Intercontinental ballistic missile |
| ASTRA | Automatic flight and fire control system |
| A/USSEA | Acting under-secretary of state for external affairs |
| BMEWS | Ballistic missile early warning system |
| CAS | Chief of the Air Staff (Canada) |
| COCOM | Coordinating Committee on Export Controls |
| CPC | Combined Policy Committee |
| CPSU | Communist Party of the Soviet Union |
| CRO | Commonwealth Relations Office (UK) |
| CSC | Chiefs of Staff Committee |
| CUSRPG | Canada/United States Regional Planning Group (NATO) |
| DDP | Department of Defence Production |
| DEW | Distant Early Warning |
| DOT | Department of Transport |
| DRVN | Democratic Republic of Vietnam |
| FBI | Federal Bureau of Investigation (US) |
| FO | Foreign Office (UK) |
| FTA | Free Trade Area |
| GATT | General Agreement on Tariffs and Trade |
| GOSPLAN | State Economic Planning Commission (Soviet Union) |
| GRC | Government of the Republic of China |
| ICBM | Intercontinental Ballistic Missile |
| ICEM | Intergovernmental Committee for European Migration |
| ICC | International Control Commission |
| IJC | International Joint Commission (Canada-US) |
| IRBM | Intermediate-range ballistic missile |
| MAAG | Military Assistance Advisory Group |
| MSG | Military Study Group |
| MFN | Most Favoured Nation |
| NATO | North Atlantic Treaty Organization |
| NCO | Non-Commissioned Officer |
| N.N. | Neutral Nations |
| NORAD | North American Air Defence |
| NZ | New Zealand |
| OAS | Organization of American States |
| OTC | Organization for Trade Cooperation (GATT) |
| PAVN | People's Army of Vietnam |
| PERMIS | Permanent Mission of Canada to the United Nations |
| PC (O) | Privy Council (Office) |
| PL | Public Law (US) |
| PJBD | Permanent Joint Board on Defence (Canada-US) |
| R&D | Research and Development |
| RCAF | Royal Canadian Air Force |
| RCMP | Royal Canadian Mounted Police |
| RCN | Royal Canadian Navy |
| RLG | Royal Laotian Government |
| SAC | Strategic Air Command (US) |
| SACEUR | Supreme Allied Commander, Europe (NATO) |
| SACLANT | Supreme Allied Commander, Atlantic (NATO) |
| SAGE | Semi-automatic ground environment |
| SEATO | Southeast Asia Treaty Organization |
| SHAPE | Supreme Headquarters, Allied Powers, Europe (NATO) |
| SMA | Senior Military Advisers (ICC) |
| STOL | Short take-off and Landing |
| SVM | South Vietnamese Mission |
| TACAN | Tactical Air Navigation |
| TERM | Temporary Equipment Recovery Mission |
| UAR | United Arab Republic |
| UK | United Kingdom< |
| UN | United Nations |
| UNEF | United Nations Emergency Force |
| UNHCR | United Nations High Commissioner for Refugees |
| UNHQ | United Nations Headquarters |
| UNOGIL | United Nations Observer Group in Lebanon |
| UNTSO | United Nations Truce Supervisory Organization |
| UNRWA | United Nations Relief and Works Agency for Palestine Refugees in the Near East |
| USA | United States of America |
| USAF | United States Air Force |
| USDA | United States Department of Agriculture |
| USSEA | Under-Secretary of State for External Affairs |
| USSR | Union of Soviet Socialist Republics |