90 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. ] :
 |  | EMIRATES | (Abu Dhabi ar) |  | President Sheikh Muhammad bin Zayed Al Nahyan |  | |
 |  | ARGENTINE | (Buenos Aires a + Olivos r) |  | President Alberto Fernandez |  | |
 |  | AUSTRIA | (Vienna) |  | President Alexander Van der Bellen |  | |
 |  | AUSTRALIA | (Canberra al + Melbourne r + Sydney r) |  | David Hurley |  | |
 |  | TALIBAN AFGHANISTAN | (Kabul) |  | Supreme Leader Mullah Hibatullah Akhundzada | | |
 |  | AZERBAIJAN | (Baku) |  | President Iham Aliyev | | |
 |  | BANGLADESH | (Dhaka a) |  | President Abdul Hamid | | |
 |  | BELGIUM | (Brussels al + Bruges j) |  | King Philippe | | |
 |  | BAHRAIN | (Manamah a + Sakhir r) |  | King Sheikh Hamad bin Isa Al Khalifah | | |
 |  | BENIN | (Porto Novo a + Cotonou ilmnqr) |  | President Patrice Talon |  | |
 |  | BRUNEI DARUSSALAM | (Bandar Seri Begawan) |  | Sultan Hassanal Bolkiah | | |
 |  | BRAZIL | (Brasilia a + Rio de Janeiro m) |  | President Jair Bolsonaro | | |
 |  | BELARUS | (Minsk) |  | President Alexander Lukashenko | | |
 |  | CANADA | (Ottawa) |  | Mary Simon |  | |
 |  | SWITZERLAND | (Berne lq + Lausanne j) |  | President Ignazio Cassis | | |
 |  | COTE D'IVOIRE | (Yamoussoukro a + Abidjan dklmnr + Cocody br) |  | President Alassane Ouattara | | |
 |  | COOK ISLANDS | (Avarua) |  | Queen Elizabeth II | | |
 |  | CHILE | (Santiago of Chile a + Valparaiso l + Vina del Mar s) |  | President Gabriel Boric | | |
 |  | CHINA | (Beijing) |  | Xi Jinping | | |
 |  | CYPRUS | (Nicosia) |  | President Nicos Anastasiades | | |
 |  | GERMANY | (Berlin ar + Bonn lmr + Karlsruhe d) |  | Bundespresident Frank-Walter Steinmeier | | |
 |  | DENMARK | (Copenhagen as + Hillerod r) |  | Queen Margaret II | | |
 |  | ALGERIA | (Algiers a + El Biar d + El Mouradia r) |  | State President Abdelmadjid Tebboune | | |
 |  | ECUADOR | (San Francisco of Quito) |  | President Guillermo Lasso | | |
 |  | 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 Ratu Wiliame Katonivere | | |
 |  | FRANCE | (Paris a + Bormes-Les-Mimosas s) |  | President Emmanuel Macron | | |
 |  | GEORGIA | (Tbilisi a + Batumi d) |  | President Salome Zurabishvili | | |
 |  | GHANA | (Accra) |  | President Nana Addo Dankwa Akufo-Addo | | |
 |  | GUINEA | (Conakry) |  | Mamady Doumbouya | | |
 |  | GREECE | (Athens a) |  | President Ekaterini Sakellaropoulou | | |
 |  | HONG KONG | (Victoria City) | | Xi Jinping | | |
 |  | CROATIA | (Zagreb) |  | President Zoran Milanovich | | |
 |  | HUNGARY | (Budapest a) |  | President Katalin Novak | | |
 |  | INDONESIA | (Jakarta akn + Nusantara f + Bogor r + Chipanas r + Yogyakarta r + Tampaksiring r) |  | President Joko Widodo | | |
 |  | IRELAND | (Dublin) |  | President Michael Daniel Higgins | | |
 |  | ISRAEL | (Jerusalem aruy + Tel Aviv-Jaffa imn) |  | President Isaac Herzog | | |
 |  | INDIA | (New Delhi a + Simla s + Bolarum w + Mysore r) |  | President Ram Nath Kovind | | |
 |  | IRAN | (Tehran a + Qum y) |  | 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 Sadyr Zhaparov | | |
 |  | CAMBODIA | (Phnom Penh a + Siem Reap r) |  | King Norodom Sihamoni | | |
 |  | SOUTH KOREA | (Seoul adknr + Sejong b + Gyeryong m) |  | President Yoon Suk-Yeol | | |
 |  | KAZAKHSTAN | (Nur-Sultan a) |  | President Kasym-Zhomart Tokayev | | |
 |  | LAOS | (Vientiane) |  | Thongloun Sisoulith | | |
 |  | SRI LANKA | (Sri Jayewardenepura Kotte al + Colombo ejnr + Kandy r) |  | President Gotabaya Rajapaksa | | |
 |  | LIBERIA | (Monrovia) |  | President George Weah | | |
 |  | LUXEMBOURG | (Luxembourg a) |  | Grand Duke Henri | | |
 |  | MOROCCO | (Rabat a) |  | King Muhammad VI | | |
 |  | MADAGASCAR | (Tananarive) |  | President Andry Rajoelina | | |
 |  | MYANMAR | (Naypyidaw a + Rangoon bny) |  | General Min Aung Hlaing | | |
 |  | MONGOLIA | (Ulan-Bator) |  | President Ukhnaagiin Khurelsukh | | |
 |  | MALTA | (Valletta a + Attard r + Siggiewi s) |  | President George Vella | | |
 |  | MALDIVES | (Male) |  | President Ibrahim Mohamed Solih | | |
 |  | MALAYSIA | (Putrajaya aj + Kuala Lumpur ejklnry) |  | Sultan Abdullah Shah | | |
 |  | NETHERLANDS | (Amsterdam a + The Hague jlmr + Wassenaar r) |  | King Willem-Alexander | | |
 |  | NORWAY | (Oslo) |  | King Harald V | | |
 |  | NEPAL | (Kathmandu) |  | President Bidhya Devi Bhandari | | |
 |  | OMAN | (Muscat) |  | Sultan Haitham bin Tarik | | |
 |  | PERU | (Lima a + Arequipa d + Cusco h) |  | President Pedro Castillo | | |
 |  | PHILIPPINES | (Manila acr + Quezon City b + Pasay City b) |  | President Rodrigo Duterte | | |
 |  | PAKISTAN | (Islamabad a + Lahore ky + Rawalpindi m) |  | President Arif Alvi | | |
 |  | POLAND | (Warsaw ac) |  | 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 + Sochi s + Valdai s) |  | President Vladimir Putin | | |
 |  | RWANDA | (Kigali) |  | President Paul Kagame | | |
 |  | SAUDI ARABIA | (Riyadh a + Mecca y) |  | King Salman | | |
 |  | SUDAN | (Khartoum a) |  | General 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 Jose Manuel Ramos-Horta | | |
 |  | TUNISIA | (Tunis a + Bardois df) |  | President Kais Saied | | |
 |  | TONGA | (Nukualofa) |  | King Ahoeitu Tupou VI | | |
 |  | TURKIYE | (Ankara a + Marmaris s) |  | President Recep Tayyip Erdogan | | |
 |  | UNITED KINGDOM | (London a + Westminster lr + Edinburgh s + Windsor r) | | Queen Elizabeth II | | |
 |  | URUGUAY | (Montevideo) |  | President Luis Alberto Lacalle Pou | | |
 |  | UZBEKISTAN | (Tashkent a) |  | Shavkat Mirziyayev | | |
 |  | VIETNAM | (Hanoi) |  | Nguyen Phu Trong | | |
 |  | VANUATU | (Port Vila) |  | President Tallis Obed Moses | | |
 |  | SAMOA | (Apia) |  | Vaaletoa Sualauvi II | | |
Sources are available upon request.
