75 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. ] :
 |  | UNITED ARAB EMIRATES | (Abu Dhabi ar) |  | President Sheikh Khalifa bin Zayed Al Nahyan |  | |
 |  | AFGHANISTAN | (Kabul) |  | President Ashraf Ghani | | |
 |  | AUSTRIA | (Vienna) |  | President Alexander Van der Bellen |  | |
 |  | AUSTRALIA | (Canberra) |  | David Hurley |  | |
 |  | AZERBAIJAN | (Baku) |  | President Iham Aliyev | | |
 |  | BANGLADESH | (Dhaka a) |  | President Abdul Hamid | | |
 |  | BELGIUM | (Brussels) |  | King Philippe | | |
 |  | BAHRAIN | (Manamah) |  | King Sheikh Hamad bin Isa Al Khalifah | | |
 |  | BRUNEI DARUSSALAM | (Bandar Seri Begawan) |  | Sultan Hassanal Bolkiah | | |
 |  | BELARUS | (Minsk) |  | President Alexander Lukashenko | | |
 |  | CANADA | (Ottawa) |  | Queen Elizabeth II |  | |
 |  | SWITZERLAND | (Berne lq + Lausanne j) |  | President Simonetta Sommaruga | | |
 |  | CHINA | (Beijing) |  | Xi Jinping | | |
 |  | CYPRUS | (Nicosia) |  | President Nicos Anastasiades | | |
 |  | GERMANY | (Berlin ar + Bonn lr + Karlsruhe d) |  | Bundespresident Frank-Walter Steinmeier | | |
 |  | DENMARK | (Copenhagen) |  | Queen Margaret II | | |
 |  | ALGERIA | (Algiers a + El Biar d + El Mouradia r) |  | State President Abdelmadjid Tebboune |  | |
 |  | ECUADOR | (San Francisco of Quito) |  | President Lenin Moreno |  | |
 |  | EGYPT | (Cairo a + Alexandria r + Almasa New Capital City f) |  | President Abdel Fattah el-Sisi | | |
 |  | SPAIN | (Madrid) |  | King Philip VI | | |
 |  | ETHIOPIA | (Addis Ababa) |  | President Sahle-Work Zewde | | |
 |  | FINLAND | (Helsinki a + Kultaranta s) |  | President Sauli Niinisto | | |
 |  | FIJI | (Suva) |  | President George Konrote | | |
 |  | FRANCE | (Paris) |  | President Emmanuel Macron | | |
 |  | GEORGIA | (Tbilisi a + Batumi d) |  | President Salome Zurabishvili | | |
 |  | GUINEA | (Conakry) |  | President Alpha Conde | | |
 |  | GREECE | (Athens a) |  | President Prokopis Pavlopoulos | | |
 |  | HONG KONG | (Victoria City) | | Xi Jinping | | |
 |  | HUNGARY | (Budapest a) |  | President Janos Ader | | |
 |  | INDONESIA | (Jakarta a + Bogor r + Chipanas r + Yogyakarta r + Tampaksiring r) |  | President Joko Widodo | | |
 |  | IRELAND | (Dublin) |  | President Michael Daniel Higgins | | |
 |  | ISRAEL | (Jerusalem aru + Tel Aviv-Jaffa i) |  | President Reuven Rivlin | | |
 |  | INDIA | (New Delhi a + Simla s + Bolarum w) |  | President Ram Nath Kovind | | |
 |  | IRAN | (Tehran) |  | Supreme Leader Ayatollah Ali Khamenei | | |
 |  | ICELAND | (Reykjavik a + Alftanes r) |  | President Gudhni Thorlacius Johannesson | | |
 |  | ITALY | (Rome a) |  | President Sergio Mattarella | | |
 |  | JORDAN | (Amman) |  | King Abdullah II | | |
 |  | KYRGYZSTAN | (Bishkek) |  | President Sooronbay Jeenbekov | | |
 |  | CAMBODIA | (Phnom Penh) |  | King Norodom Sihamoni | | |
 |  | SOUTH KOREA | (Seoul adknr + Sejong b) |  | President Moon Jae-In | | |
 |  | KAZAKHSTAN | (Nur-Sultan a) |  | President Kasym-Zhomart Tokayev | | |
 |  | LAOS | (Vientiane) |  | Boungnang Vorachith | | |
 |  | SRI LANKA | (Sri Jayewardenepura Kotte al + Colombo ejnr + Kandy r) |  | President Gotabaya Rajapaksa | | |
 |  | LUXEMBOURG | (Luxembourg a) |  | Grand Duke Henri | | |
 |  | MADAGASCAR | (Tananarive) |  | President Andry Rajoelina | | |
 |  | MYANMAR | (Naypyidaw a + Rangoon bn) |  | President Win Myint | | |
 |  | MONGOLIA | (Ulan-Bator) |  | President Khaltmaagiin Battulga | | |
 |  | MALTA | (Valletta a + Attard r + Siggiewi s) |  | President George Vella | | |
 |  | MALDIVES | (Male) |  | President Ibrahim Mohamed Solih | | |
 |  | MALAYSIA | (Putrajaya aj + Kuala Lumpur ejlry) |  | Sultan Abdullah Shah | | |
 |  | NETHERLANDS | (Amsterdam a + The Hague jlr + Wassenaar r) |  | King Willem-Alexander | | |
 |  | NORWAY | (Oslo) |  | King Harald V | | |
 |  | NEPAL | (Kathmandu) |  | President Bidhya Devi Bhandari | | |
 |  | OMAN | (Muscat) |  | Sultan Haitham bin Tarik | | |
 |  | PHILIPPINES | (Manila acr + Quezon City b + Pasay City b) |  | President Rodrigo Duterte | | |
 |  | PAKISTAN | (Islamabad) |  | President Arif Alvi | | |
 |  | POLAND | (Warsaw a) |  | President Andrzej Duda | | |
 |  | PORTUGAL | (Lisbon) |  | President Marcelo Rebelo de Sousa | | |
 |  | QATAR | (Doha) |  | Emir Sheikh Tamim bin Hamad Al Thani | | |
 |  | ROMANIA | (Bucharest) |  | President Klaus Iohannis | | |
 |  | SERBIA | (Belgrade) |  | President Alexandar Vuchich | | |
 |  | RUSSIA | (Moscow a + Saint Petersburg d) |  | President Vladimir Putin | | |
 |  | SAUDI ARABIA | (Riyadh) |  | King Salman | | |
 |  | SUDAN | (Khartoum) |  | Abdel-Fatah al-Burhan Abdelrahman | | |
 |  | SWEDEN | (Stockholm) |  | King Charles XVI Gustav | | |
 |  | SINGAPORE | (Singapore) |  | President Halimah Yacob | | |
 |  | THAILAND | (Bangkok) |  | King Rama X. Vajiralongkorn | | |
 |  | TAJIKISTAN | (Dushanbe) |  | President Emomali Rakhmonov | | |
 |  | TIMOR-LESTE | (Dili) |  | President Francisco Guterres | | |
 |  | TURKEY | (Ankara a) |  | President Recep Tayyip Erdogan | | |
 |  | UNITED KINGDOM | (London a + Westminster lr + Edinburgh s + Windsor r) | | Queen Elizabeth II | | |
 |  | UZBEKISTAN | (Tashkent a) |  | Shavkat Mirziyayev | | |
 |  | VIETNAM | (Hanoi) |  | Nguyen Phu Trong | | |
 |  | VANUATU | (Port Vila) |  | President Tallis Obed Moses | | |
 |  | SAMOA | (Apia) |  | Vaaletoa Sualauvi II | | |
