46 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. ] :
 |  | AUSTRIA | (Vienna) |  | President Franz Jonas |  | |
 |  | AUSTRALIA | (Canberra) |  | Queen Elizabeth II |  | |
 |  | BELGIUM | (Brussels) |  | King Baudoin I | | |
 |  | BURUNDI | (Gitega a + Bujumbura r) |  | King Mwambutsa IV Bangiriceng |  | |
 |  | SWITZERLAND | (Berne lq + Lausanne j) |  | President Hans Peter Tschudi | | |
 |  | IVORY COAST | (Abidjan a) |  | President Felix Houphouet-Boigny | | |
 |  | CAMEROON | (Yaounde) |  | President Ahmadou Ahidjo | | |
 |  | CZECHOSLOVAKIA | (Prague a) |  | Antonin Novotny | | |
 |  | WEST GERMANY | (Bonn ar + Karlsruhe d) |  | Bundespresident Heinrich Luebke | | |
 |  | DENMARK | (Copenhagen) |  | King Frederick IX | | |
 |  | UNITED ARAB | (Cairo a + Alexandria r) |  | President Gamal Abdel Nasser | | |
 |  | SPAIN | (Madrid) |  | Caudillo Francisco Franco | | |
 |  | FINLAND | (Helsinki a + Kultaranta s) |  | President Urho Kekkonen | | |
 |  | FRANCE | (Paris) |  | President Charles de Gaulle | | |
 |  | GABON | (Libreville) |  | President Leon Mba | | |
 |  | GREECE | (Athens a) |  | King Constantine II | | |
 |  | HAITI | (Port Au Prince) |  | Supreme Chief Francois Duvalier Papa Doc |  | |
 |  | INDONESIA | (Jakarta a + Bogor r + Chipanas r + Jogjakarta r + Tampaksiring r) |  | President Ahmad Sukarno |  | |
 |  | IRELAND | (Dublin) |  | President Eamon de Valera | | |
 |  | ISRAEL | (West Jerusalem qu + Tel Aviv-Jaffa in) |  | President Zalman Shazar | | |
 |  | IRAN | (Tehran) |  | Mohammad Reza Shah Pahlavi | | |
 |  | ITALY | (Rome a) |  | President Giuseppe Saragat | | |
 |  | JAMAICA | (Kingston) | | Queen Elizabeth II | | |
 |  | JORDAN | (Amman) |  | King Hussein I | | |
 |  | JAPAN | (Tokyo) |  | Emperor Hirohito | | |
 |  | KENYA | (Nairobi) |  | President Jomo Kenyatta | | |
 |  | LEBANON | (Beirut a + Baabda r) |  | President Charles Helou | | |
 |  | LUXEMBOURG | (Luxembourg a) |  | Grand Duke Jean | | |
 |  | MADAGASCAR | (Tananarive) |  | President Philibert Tsiranana | | |
 |  | MALAYSIA | (Kuala Lumpur) |  | Sultan Ismail Nasiruddin Shah | | |
 |  | NIGERIA | (Lagos a) |  | President Nnamdi Azikiwe | | |
 |  | NETHERLANDS | (Amsterdam a + The Hague jlr + Wassenaar r) |  | Queen Juliana | | |
 |  | NORWAY | (Oslo) |  | King Olav V | | |
 |  | NEW ZEALAND | (Wellington) | | Queen Elizabeth II | | |
 |  | PAKISTAN | (Rawalpindi t + Karachi b) |  | President Mohammad Ayub Khan | | |
 |  | PORTUGAL | (Lisbon) |  | President Americo Thomaz | | |
 |  | RWANDA | (Kigali) |  | President Gregoire Kayibanda | | |
 |  | SUDAN | (Khartoum) |  | Ismail al-Azhari | | |
 |  | SWEDEN | (Stockholm) |  | King Gustav VI Adolphe | | |
 |  | SYRIA | (Damascus) |  | Muhammad Amin al-Hafez | | |
 |  | TURKEY | (Ankara a) |  | President Cemal Gursel | | |
 |  | TANZANIA | (Dar Es Salaam a) |  | President Julius Nyerere | | |
 |  | UGANDA | (Kampala a + Mengo r) |  | President Edward Mutesa II | | |
 |  | UNITED KINGDOM | (London a + Westminster lr + Edinburgh s + Windsor r) | | Queen Elizabeth II | | |
 |  | YUGOSLAVIA | (Belgrade) |  | President Josip Broz Tito | | |
 |  | SOUTH AFRICA | (Pretoria ae + Cape Town l + Bloemfontein j) |  | State President Charles Robberts Swart | | |
