53 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. ] :
| | ANGOLA | (Luanda) | | President Jose Eduardo dos Santos | | |
| | ARGENTINE | (Buenos Aires a + Olivos r) | | President Mauricio Macri | | |
| | BARBADOS | (Bridgetown) | | Queen Elizabeth II | | |
| | BURUNDI | (Bujumbura) | | President Pierre Nkurunziza | | |
| | BENIN | (Porto Novo a + Cotonou ilnqr) | | President Patrice Talon | | |
| | BOLIVIA | (Sucre cj + La Paz eir) | | President Evo Morales | | |
| | BRAZIL | (Brasilia) | | Michel Temer | | |
| | COTE D´IVOIRE | (Yamoussoukro a + Abidjan dln) | | President Alassane Ouattara | | |
| | CHINA | (Beijing) | | Xi Jinping | | |
| | CUBA | (Havana) | | Raul Castro | | |
| | CABO VERDE | (Praia) | | President Jorge Carlos Fonseca | | |
| | DOMINICAN | (Santo Domingo de Guzman) | | President Danilo Medina | | |
| | ALGERIA | (Algiers a + El Biar d + El Mouradia r) | | President Abdelaziz Bouteflika | | |
| | ECUADOR | (San Francisco of Quito) | | President Rafael Correa Delgado | | |
| | EGYPT | (Cairo a + Alexandria r) | | President Abdel Fattah el-Sisi | | |
| | MICRONESIA | (Palikir a + Kolonia b) | | President Peter Martin Christian | | |
| | GABON | (Libreville) | | President Ali Ben Bongo Ondimba | | |
| | GHANA | (Accra) | | President John Dramani Mahama | | |
| | GUYANA | (Georgetown) | | President David Arthur Granger | | |
| | HONDURAS | (Tegucigalpa a + Comayaguela c) | | President Juan Orlando Hernandez | | |
| | INDONESIA | (Jakarta a + Bogor r + Chipanas r + Yogyakarta r + Tampaksiring r) | | President Joko Widodo | | |
| | INDIA | (New Delhi a + Simla s + Bolarum w) | | President Pranab Mukherjee | | |
| | IRAQ | (Baghdad) | | President Fuad Masum | | |
| | IRAN | (Tehran) | | Supreme Leader Ayatollah Ali Khamenei | | |
| | JAMAICA | (Kingston) | | Queen Elizabeth II | | |
| | JORDAN | (Amman) | | King Abdullah II | | |
| | CAMBODIA | (Phnom Penh) | | King Norodom Sihamoni | | |
| | NORTH KOREA | (Pyongyang a) | | Kim Jong-Un | | |
| | SRI LANKA | (Sri Jayewardenepura Kotte al + Colombo ejnr + Kandy r) | | President Maithripala Sirisena | | |
| | LIBERIA | (Monrovia) | | President Ellen Johnson-Sirleaf | | |
| | LIBYA | (Tripoli a) | | Fayez El-Sarraj | | |
| | MOROCCO | (Rabat a) | | King Muhammad VI | | |
| | MALI | (Bamako) | | President Ibrahim Boubacar Keita | | |
| | MAURITIUS | (Port Louis a + Reduit in Moka r) | | President Ameenah Gurib-Fakim | | |
| | MALAWI | (Lilongwe) | | President Peter Mutharika | | |
| | MALAYSIA | (Putrajaya aj + Kuala Lumpur ejlry) | | Sultan Abdul Halim Muadzam Shah | | |
| | MOZAMBIQUE | (Maputo) | | President Filipe Nyusi | | |
| | NAMIBIA | (Windhoek) | | President Hage Geingob | | |
| | NIGERIA | (Abuja a) | | President Muhammadu Buhari | | |
| | NICARAGUA | (Managua) | | President Daniel Ortega | | |
| | PANAMA | (Panama City) | | President Juan Carlos Varela | | |
| | PHILIPPINES | (Manila acr + Quezon City b + Pasay City b) | | President Rodrigo Duterte | | |
| | PAKISTAN | (Islamabad) | | President Mamnoon Hussain | | |
| | SEYCHELLES | (Port Victoria) | | President James Michel | | |
| | SUDAN | (Khartoum) | | President Omar Al-Bashir | | |
| | SIERRA LEONE | (Freetown) | | President Ernest Bai Koroma | | |
| | SURINAME | (Paramaribo) | | President Desi Bouterse | | |
| | TANZANIA | (Dodoma City al + Dar Es Salaam jnqr) | | President John Magufuli | | |
| | UGANDA | (Kampala a + Entebbe r) | | President Yoweri Museveni | | |
| | VENEZUELA | (Caracas) | | President Nicolas Maduro | | |
| | VIETNAM | (Hanoi) | | Nguyen Phu Trong | | |
| | SOUTH AFRICA | (Pretoria ae + Cape Town l + Bloemfontein j + Johannesburg d) | | President Jacob Zuma | | |
| | ZIMBABWE | (Harare) | | President Robert Mugabe | | |