25 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) | | King Mohammad Zahir Shah | | |
| | CONGO-LEOPOLDVILLE | (Leopoldville a) | | President Joseph Kasavubu | | |
| | CUBA | (Havana) | | Supreme Leader Fidel Castro | | |
| | CYPRUS | (Nicosia) | | President Archbishop Makarios III | | |
| | ALGERIA-IN-EXILE | (Tunis x + Ouzellaguen g + (Algiers) c) | | President Benyoucef Benkhedda | | |
| | UNITED ARAB | (Cairo a + Alexandria r) | | President Gamal Abdel Nasser | | |
| | ETHIOPIA-ERITREA | (Addis Ababa) | | Emperor Ras Tafari Haile Selassie I | | |
| | GHANA | (Accra) | | President Kwame Nkrumah | | |
| | GUINEA | (Conakry) | | President Ahmed Sekou Toure | | |
| | INDONESIA | (Jakarta a + Bogor r + Chipanas r + Jogjakarta r + Tampaksiring r) | | President Ahmad Sukarno | | |
| | INDIA | (New Delhi a + Simla s + Bolarum w) | | President Rajendra Prasad | | |
| | IRAQ | (Baghdad) | | Muhammad Najib Al-Rubai | | |
| | CAMBODIA | (Phnom Penh) | | Prince Norodom Sihanouk | | |
| | LEBANON | (Beirut a + Baabda r) | | President Fuad Chehab | | |
| | CEYLON | (Colombo a + Kandy r) | | Queen Elizabeth II | | |
| | MOROCCO | (Rabat a) | | King Hassan II | | |
| | MALI | (Bamako) | | President Modibo Keita | | |
| | BURMA | (Rangoon a) | | President Win Maung | | |
| | NEPAL | (Kathmandu) | | Maharajah Mahendra Bir Bikram Shah Dev | | |
| | SAUDI ARABIA | (Riyadh) | | King Saud | | |
| | SUDAN | (Khartoum) | | General Ibrahim Abboud | | |
| | SOMALIA | (Mogadishu) | | President Aden Abdullah Osman Daar | | |
| | TUNISIA | (Tunis) | | President Habib Bourguiba | | |
| | YEMEN | (Taiz) | | Imam and King Ahmad IV ash-Shams | | |
| | YUGOSLAVIA | (Belgrade) | | President Josip Broz Tito | | |