| AEC | ATOMIC ENERGY COMMISSION (UNITED NATIONS) |
| AFofL | AMERICAN FEDERATION OF LABOUR |
| AP | ASSOCIATED PRESS |
| A/V/M | AIR VICE MARSHAL |
| BCOF | BRITISH COMMONWEALTH OCCUPATION FORCE (JAPAN) |
| CAS | CHIEF OF AIR STAFF |
| CBCIS | CANADIAN BROADCASTING CORPORATION INTERNATIONAL SERVICE/ |
| CCA | COMMISSION FOR CONVENTIONAL ARMANENTS (UNITED NATIONS) |
| CCF | COOPERATIVE COMMONWEALTH FEDERATION |
| CFM | COUNCIL OF FOREIGN MINISTERS |
| CGS | CHIEF OF GENERAL STAFF |
| CPAL | CANADIAN PACIFIC AIRLINES |
| CPC | COMBINED POLICY COMMITTEE |
| CRO | COMMONWEALTH RELATIONS OFFICE |
| DCER/DREC | DOCUMENTS ON CANADIAN EXTERNAL RELATIONS/DOCUMENTS RELA |
| DFEC | DEFENCE FINANCE AND ECONOMIC COMMITTEE (NATO) |
| ECA | ECONOMIC COOPERATION ADMINISTRATION (UNITED STATES) |
| ECOSOC | ECONOMIC AND SOCIAL COUNCIL (UNITED NATIONS) |
| ERP | EUROPEAN RECOVERY PROGRAM |
| EPU | EUROPEAN PAYMENTS UNION |
| FAO | FOOD AND AGRICULTURE ORGANIZATION |
| FEC | FAR EASTERN COMMISSION |
| FRUS | FOREIGN RELATIONS OF THE UNITED STATES |
| FSO | FOREIGN SERVICE OFFICER |
| GATT | GENERAL AGREEMENT ON TARIFFS AND TRADE/ACCORD GÉNÉRAL |
| HMCS | HIS MAJESTY'S CANADIAN SHIP |
| IBRD | INTERNATIONAL BANK FOR RECONSTRUCTION AND DEVELOPMENT |
| ICAO | INTERNATIONAL CIVIL AVIATION ORGANIZATION |
| IJC | INTERNATIONAL JOINT COMMISSION |
| ILO | INTERNATIONAL LABOUR ORGANIZATION |
| IMF | INTERNATIONAL MONETARY FUND |
| IRO | INTERNATIONAL REFUGEE ORGANIZATION |
| ITO | INTERNATIONAL TRADE ORGANIZATION |
| IWC | INTERNATIONAL WHEAT COUNCIL |
| JIB | JOINT INTELLIGENCE BOARD |
| JlC | JOINT INTELLIGENCE COMMITTEE |
| JIMC | JOINT INDUSTRIAL MOBILIZATION COMMITTEE |
| LT.COL. | LIEUTENANT-COLONEL |
| MDAA | MUTUAL DEFENSE ASSISTANCE ACT (UNITED STATES) |
| MFN | MOST-FAVOURED NATION |
| MP | MEMBER OF PARLIAMENT |
| MPSB | MILITARY PRODUCTION AND SUPPLY BOARD (NATO) |
| NATO | NORTH ATLANTIC TREATY ORGANIZATION |
| NGO | NON-GOVERNMENTAL ORGANIZATION |
| NSRB | NATIONAL SECURITY RESOURCES BOARD |
| OEEC | ORGANIZATION FOR EUROPEAN ECONOMIC COOPERATION |
| OIT | OFFICE OF INTERNATIONAL TRADE, DEPARTMENT OF COMMERCE OF |
| OMA | OFFICE OF MILITARY AFFAIRS, OFFICE OF ASSISTANT TO SECRETARY |
| PJBD | PERMANENT JOINT BOARD ON DEFENCE |
| POL | PETROLEUM, OIL, LUBRICANTS |
| PWS | PERMANENT WORKING STAFF |
| RAF | ROYAL AIR FORCE |
| RCAF | ROYAL CANADIAN AIR FORCE |
| RCMP | ROYAL CANADIAN MOUNTED POLICE |
| SAC | STRATEGIC AIR COMMAND |
| SCAP | SUPREME COMMANDER, ALLIED POWERS, JAPAN |
| SHAPE | SUPREME HEADQUARTERS, ALLIED POWERS, EUROPE |
| TAB | TECHNICAL ASSISTANCE BOARD (UNITED NATIONS) |
| TAC | INTERDEPARTMENTAL COMMITTEE ON TRADE AGREEMENTS (UNITED STATES) |
| TAP | TECHNICAL ASSISTANCE PROGRAM (UNITED NATIONS) |
| TCA | TRANS-CANADA AIRLINES |
| UNESCO | UNITED NATIONS EDUCATIONAL, SCIENTIFIC AND CULTURAL ORGANIZATION |
| UNCIP | UNITED NATIONS COMMISSION ON INDIA AND PAKISTAN |
| UNICEF | UNITED NATIONS COMMISSION ON INDIA AND PAKISTAN |
| UNKRA | UNITED NATIONS INTERNATIONAL CHILDREN'S EMERGENCY FUND |
| UNRRA | UNITED NATIONS KOREAN RECONSTRUCTION AGENCY |
| USAEC | UNITED NATIONS RELIEF AND REHABILITATION ADMINISTRATION |
| USAF | UNITED STATES ATOMIC ENERGY COMMISSION |
| USG | UNITED STATES AIR FORCE |
| USNS | UNITED STATES GOVERNMENT |
| USSEA | UNITED STATES NAVAL (NAVY) SHIP |
| W/CDR. | UNDER-SECRETARY OF STATE FOR EXTERNAL AFFAIRS WING COMMANDER |
| WFTU | WORLD FEDERATION OF TRADE UNIONS |
| WFUNA | WORLD FEDERATION OF UNITED NATIONS ASSOCIATIONS |
| WHO | WORLD HEALTH ORGANIZATION |
| WPTB | WARTIME PRICES AND TRADE BOARD |