24 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. ] :
| | BANGLADESH | (Dhaka a) | | President Abdul Hamid | | |
| | BENIN | (Porto Novo a + Cotonou ilnqr) | | President Patrice Talon | | |
| | CHINA | (Beijing) | | Xi Jinping | | |
| | COLOMBIA | (Bogota) | | President Juan Manuel Santos | | |
| | EGYPT | (Cairo a + Alexandria r) | | President Abdel Fattah el-Sisi | | |
| | ETHIOPIA | (Addis Ababa) | | President Mulatu Teshome Wirtu | | |
| | GHANA | (Accra) | | President John Dramani Mahama | | |
| | GAMBIA | (Banjul) | | President Yahya Jammeh | | |
| | 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 | | |
| | JORDAN | (Amman) | | King Abdullah II | | |
| | KENYA | (Nairobi) | | President Uhuru Kenyatta | | |
| | MOROCCO | (Rabat a) | | King Muhammad VI | | |
| | MALI | (Bamako) | | President Ibrahim Boubacar Keita | | |
| | MEXICO | (Mexico City) | | President Enrique Pena Nieto | | |
| | NIGERIA | (Abuja a) | | President Muhammadu Buhari | | |
| | PAKISTAN | (Islamabad) | | President Mamnoon Hussain | | |
| | SENEGAL | (Dakar) | | President Macky Sall | | |
| | THAILAND | (Bangkok) | | King Rama IX Bhumibol Adulyadej | | |
| | TUNISIA | (Tunis a + Bardois df) | | President Mohamed Beji Caid Essebsi | | |
| | UGANDA | (Kampala a + Entebbe r) | | President Yoweri Museveni | | |
| | YEMEN | (Aden qt + Riyadh x) | | President Abd Rabbuh Mansur Hadi | | |
| | SOUTH AFRICA | (Pretoria ae + Cape Town l + Bloemfontein j + Johannesburg d) | | President Jacob Zuma | | |
| | ZIMBABWE | (Harare) | | President Robert Mugabe | | |