120 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. ] :
 |  | AFGHANISTAN | (Kabul) |  | President Sardar Mohammad Daud Khan |  | |
 |  | ALBANIA | (Tirana) |  | Enver Hoxha |  | |
 |  | ARGENTINE | (Buenos Aires a + Olivos r) |  | President Isabel Peron |  | |
 |  | AUSTRIA | (Vienna) |  | President Rudolf Kirchschlaeger | | |
 |  | AUSTRALIA | (Canberra al + Melbourne r + Sydney r) |  | Queen Elizabeth II |  | |
 |  | BENGLADESH | (Dacca a) |  | President Bangabandhu Sheikh Mujibur Rahman | | |
 |  | BELGIUM | (Brussels al + Bruges j) |  | King Baudoin I | | |
 |  | UPPER VOLTA | (Ouagadougou) |  | General Aboubakar Sangoule Lamizana |  | |
 |  | BULGARIA | (Sofia) |  | Todor Zhivkov | | |
 |  | BAHRAIN | (Manamah a + Sakhir r) |  | Emir Sheikh Isa II bin Salman Al Khalifah | | |
 |  | BURUNDI | (Bujumbura) |  | President Michel Micombero | | |
 |  | BOLIVIA | (Sucre cj + La Paz eir) |  | President Hugo Banzer | | |
 |  | BRAZIL | (Brasilia) |  | President Ernesto Geisel | | |
 |  | BOTSWANA | (Gaborone a) |  | President Seretse Khama | | |
 |  | BYELORUSSIA | (Minsk) |  | Pyotr Masherov | | |
 |  | CANADA | (Ottawa) | | Queen Elizabeth II |  | |
 |  | ZAIRE | (Kinshasa a) |  | President Mobutu Sese Seko | | |
 |  | SWITZERLAND | (Berne lq + Lausanne j) |  | President Pierre Graber | | |
 |  | IVORY COAST | (Abidjan a) |  | President Felix Houphouet-Boigny | | |
 |  | CHILE | (Santiago of Chile a + Vina del Mar s) |  | General Augusto Pinochet | | |
 |  | CAMEROON | (Yaounde) |  | President Ahmadou Ahidjo | | |
 |  | CHINA | (Peking) |  | Mao Tse-Tung the Great Helmsman | | |
 |  | COLOMBIA | (Bogota) |  | President Alfonso Lopez Michelsen | | |
 |  | COSTA RICA | (San Jose) |  | President Daniel Oduber Quiros | | |
 |  | CZECHOSLOVAKIA | (Prague a) |  | Gustav Husak | | |
 |  | CUBA | (Havana) |  | Supreme Leader Fidel Castro | | |
 |  | EAST GERMANY | (East Berlin) |  | Willi Stoph | | |
 |  | WEST GERMANY | (Bonn ar + Karlsruhe d) |  | Bundespresident Walter Scheel | | |
 |  | DENMARK | (Copenhagen as + Hillerod r) |  | Queen Margaret II | | |
 |  | DOMINICAN | (Santo Domingo de Guzman) |  | President Joaquin Balaguer | | |
 |  | ALGERIA | (Algiers a + El Biar d + El Mouradia r) |  | President Houari Boumedienne | | |
 |  | ECUADOR | (San Francisco of Quito) |  | President General Guillermo Rodriguez Lara | | |
 |  | EGYPT | (Cairo a + Alexandria r) |  | President Anwar El-Sadat | | |
 |  | SPAIN | (Madrid) |  | Caudillo Francisco Franco | | |
 |  | ETHIOPIA | (Addis Ababa) |  | Tafari Benti | | |
 |  | FINLAND | (Helsinki a + Kultaranta s) |  | President Urho Kekkonen | | |
 |  | FIJI | (Suva) | | Queen Elizabeth II | | |
 |  | FRANCE | (Paris a + Bormes-Les-Mimosas s) |  | President Valery Giscard d'Estaing | | |
 |  | GHANA | (Accra) |  | General Ignatius Kutu Acheampong | | |
 |  | GREECE | (Athens a) |  | President Michael Stasinopoulos | | |
 |  | GUATEMALA | (Guatemala City) |  | President Kjell Eugenio Laugerud Garcia | | |
 |  | GUYANA | (Georgetown) |  | President Arthur Chung | | |
 |  | HONDURAS | (Tegucigalpa a + Comayaguela c) |  | Juan Alberto Melgar Castro | | |
 |  | HAITI | (Port Au Prince) |  | President Jean-Claude Duvalier Baby Doc | | |
 |  | HUNGARY | (Budapest a) |  | Janos Kadar | | |
 |  | INDONESIA | (Jakarta a + Bogor r + Chipanas r + Yogyakarta r + Tampaksiring r) |  | President Suharto | | |
 |  | IRELAND | (Dublin) |  | President Cearbhall O. Dalaigh | | |
 |  | INDIA | (New Delhi a + Simla s + Bolarum w + Mysore r) |  | President Fakhruddin Ali Ahmed | | |
 |  | IRAQ | (Baghdad a) |  | President Ahmad Hassan al-Bakr | | |
 |  | IRAN | (Tehran a + Qum y) |  | Mohammad Reza Shah Pahlavi | | |
 |  | ICELAND | (Reykjavik a + Alftanes r) |  | President Kristjan Eldjarn | | |
 |  | ITALY | (Rome a) |  | President Giovanni Leone | | |
 |  | JAMAICA | (Kingston) | | Queen Elizabeth II | | |
 |  | JORDAN | (Amman) |  | King Hussein I | | |
 |  | JAPAN | (Tokyo) |  | Emperor Hirohito | | |
 |  | KENYA | (Nairobi) |  | President Jomo Kenyatta | | |
 |  | KAMPUCHEA | (Phnom Penh a) |  | Saloth Sar Pol Pot | | |
 |  | NORTH KOREA | (Pyongyang a) |  | Kim Il-Sung | | |
 |  | SOUTH KOREA | (Seoul a) |  | President Park Chung-Hee | | |
 |  | KUWAIT | (Kuwait City a) |  | Emir Sheikh Sabah III Al Salim Al Sabah | | |
 |  | LAOS | (Vientiane a + Luangphrabang ry) |  | King Savang Vatthana | | |
 |  | LEBANON | (Beirut a + Baabda r + Yarze m) |  | President Suleiman Frangieh | | |
 |  | LIECHTENSTEIN | (Vaduz) |  | Prince Franz Joseph II | | |
 |  | SRI LANKA | (Colombo a + Kandy r) |  | President William Gopallawa | | |
 |  | LIBERIA | (Monrovia) |  | President William Richard Tolbert Jr | | |
 |  | LESOTHO | (Maseru a) |  | King Moshoeshoe II | | |
 |  | LUXEMBOURG | (Luxembourg a) |  | Grand Duke Jean | | |
 |  | LIBYA | (Tripoli a) |  | Guide Muammar Gaddafi | | |
 |  | MOROCCO | (Rabat a) |  | King Hassan II | | |
 |  | MONACO | (Monaco q) |  | Prince Rainier III | | |
 |  | MADAGASCAR | (Tananarive) |  | Gilles Andriamahazo | | |
 |  | MALI | (Bamako) |  | President Moussa Traore | | |
 |  | BURMA | (Rangoon a) |  | President Ne Win | | |
 |  | MONGOLIA | (Ulan-Bator) |  | Yumjaagiin Tsedenbal | | |
 |  | MAURITANIA | (Nouakchott) |  | President Moktar Ould Daddah | | |
 |  | MALAWI | (Lilongwe al + Zomba b + Blantyre jn) |  | President Hastings Banda | | |
 |  | MEXICO | (Mexico City) |  | President Luis Echeverria Alvarez | | |
 |  | MALAYSIA | (Kuala Lumpur a) |  | Sultan Abdul Halim Muadzam Shah | | |
 |  | NIGER | (Niamey) |  | President Seyni Kountche | | |
 |  | NIGERIA | (Lagos a) |  | Yakubu Gowon | | |
 |  | NICARAGUA | (Managua) |  | President Anastasio Somoza Debayle | | |
 |  | NETHERLANDS | (Amsterdam a + The Hague jlr + Wassenaar r) |  | Queen Juliana | | |
 |  | NORWAY | (Oslo) |  | King Olav V | | |
 |  | NEPAL | (Kathmandu) |  | Maharajah Birendra Bir Bikram Shah Dev | | |
 |  | NEW ZEALAND | (Wellington) | | Queen Elizabeth II | | |
 |  | PANAMA | (Panama City) |  | Supreme Leader General Omar Torrijos Herrera | | |
 |  | PERU | (Lima) |  | President Juan Velasco Alvarado | | |
 |  | PHILIPPINES | (Quezon City a + Manila lr + Baguio City s) |  | President Ferdinand Marcos | | |
 |  | PAKISTAN | (Islamabad a + Lahore ky) |  | President Fazal Elahi Chaudhry | | |
 |  | POLAND | (Warsaw a) |  | Edward Gierek | | |
 |  | PORTUGAL | (Lisbon) |  | President Francisco da Costa Gomes | | |
 |  | PARAGUAY | (Assumption) |  | President Alfredo Stroessner | | |
 |  | ROMANIA | (Bucharest) |  | Nicolae Ceausescu | | |
 |  | SAUDI ARABIA | (Riyadh a + Mecca y) |  | King Khalid | | |
 |  | SUDAN | (Khartoum a) |  | President Gaafar Muhammad Numairy | | |
 |  | SWEDEN | (Stockholm) |  | King Charles XVI Gustav | | |
 |  | SINGAPORE | (Singapore) |  | President Benjamin Henry Sheares | | |
 |  | SIERRA LEONE | (Freetown) |  | President Siaka Stevens | | |
 |  | SAN MARINO | (San Marino) |  | Captains Regent | | |
 |  | SENEGAL | (Dakar) |  | President Leopold Sedar Senghor | | |
 |  | SOMALIA | (Mogadishu) |  | President Muhammad Siad Barre | | |
 |  | SOVIET UNION | (Moscow) |  | Leonid Brezhnev | | |
 |  | EL SALVADOR | (San Salvador) |  | President Arturo Armando Molina | | |
 |  | SYRIA | (Damascus) |  | President Hafez Al-Assad | | |
 |  | TOGO | (Lome) |  | President Gnassingbe Eyadema | | |
 |  | THAILAND | (Bangkok) |  | King Rama IX Bhumibol Adulyadej | | |
 |  | TUNISIA | (Tunis) |  | President Habib Bourguiba | | |
 |  | TURKEY | (Ankara a) |  | President Fahri Koruturk | | |
 |  | TRINIDAD AND TOBAGO | (Port-of-Spain) | | Queen Elizabeth II | | |
 |  | TANZANIA | (Dar Es Salaam a + Dodoma f) |  | President Julius Nyerere | | |
 |  | UGANDA | (Kampala a + Entebbe r) |  | President Idi Amin Dada | | |
 |  | UNITED KINGDOM | (London a + Westminster lr + Edinburgh s + Windsor r) | | Queen Elizabeth II | | |
 |  | AMERICA | (Washington-District of Columbia) |  | President Gerald Ford | | |
 |  | URUGUAY | (Montevideo) |  | President Juan Maria Bordaberry | | |
 |  | NORTH VIETNAM | (Hanoi) |  | Le Duan | | |
 |  | VENEZUELA | (Caracas) |  | President Carlos Andres Perez | | |
 |  | VIETNAM-IN-EXILE | (Little Saigon-Garden GroveGarden Grove x) |  | Nguyen Hoang Dan | | |
 |  | YUGOSLAVIA | (Belgrade) |  | President Josip Broz Tito | | |
 |  | SOUTH AFRICA | (Pretoria ae + Cape Town l + Bloemfontein j) |  | State President Nicolaas Johannes Diederichs | | |
 |  | ZAMBIA | (Lusaka) |  | President Kenneth Kaunda | | |
Sources are available upon request.
