27 Members (excluding the associate or suspended members but including the countries represented on their behalf) [The rulers are not necessarily the representatives in the organisation. ] :
| | ARGENTINE | (Buenos Aires a + Olivos r) | | President Reynaldo Bignone | | |
| | AUSTRIA | (Vienna) | | President Rudolf Kirchschlaeger | | |
| | AUSTRALIA | (Canberra) | | Queen Elizabeth II | | |
| | BELGIUM | (Brussels) | | King Baudoin I | | |
| | CANADA | (Ottawa) | | Queen Elizabeth II | | |
| | SWITZERLAND | (Berne lq + Lausanne j) | | President Pierre Aubert | | |
| | WEST GERMANY | (Bonn ar + Karlsruhe d) | | Bundespresident Karl Carstens | | |
| | DENMARK | (Copenhagen) | | Queen Margaret II | | |
| | EGYPT | (Cairo a + Alexandria r) | | President Hosni Mubarak | | |
| | SPAIN | (Madrid) | | King Juan Carlos I | | |
| | FINLAND | (Helsinki a + Kultaranta s) | | President Mauno Koivisto | | |
| | FRANCE | (Paris) | | President Francois Mitterrand | | |
| | GREECE | (Athens a) | | President Constantine Karamanlis | | |
| | IRELAND | (Dublin) | | President Patrick John Hillery | | |
| | ISRAEL | (Jerusalem aru + Tel Aviv-Jaffa i) | | President Yitzhak Navon | | |
| | ITALY | (Rome a) | | President Sandro Pertini | | |
| | JAPAN | (Tokyo) | | Emperor Hirohito | | |
| | LUXEMBOURG | (Luxembourg a) | | Grand Duke Jean | | |
| | NETHERLANDS | (Amsterdam a + The Hague jlr + Wassenaar r) | | Queen Beatrix | | |
| | NORWAY | (Oslo) | | King Olav V | | |
| | PORTUGAL | (Lisbon) | | President Antonio Ramalho Eanes | | |
| | SWEDEN | (Stockholm) | | King Charles XVI Gustav | | |
| | SURINAME | (Paramaribo) | | Desi Bouterse | | |
| | TURKEY | (Ankara a) | | President Kenan Evren | | |
| | UNITED KINGDOM | (London a + Westminster lr + Edinburgh s + Windsor r) | | Queen Elizabeth II | | |
| | AMERICA | (Washington-District of Columbia) | | President Ronald Reagan | | |
| | VENEZUELA | (Caracas) | | President Luis Herrera Campins | | |