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. ] :
 |  | AUSTRIA | (Vienna) |  | President Alexander Van der Bellen |  | |
 |  | AUSTRALIA | (Canberra) |  | David Hurley |  | |
 |  | BANGLADESH | (Dhaka a) |  | President Abdul Hamid |  | |
 |  | BELGIUM | (Brussels) |  | King Philippe | | |
 |  | BULGARIA | (Sofia) |  | President Rumen Radev | | |
 |  | BRUNEI DARUSSALAM | (Bandar Seri Begawan) |  | Sultan Hassanal Bolkiah | | |
 |  | SWITZERLAND | (Berne lq + Lausanne j) |  | President Ueli Maurer | | |
 |  | CHINA | (Beijing) |  | Xi Jinping | | |
 |  | CYPRUS | (Nicosia) |  | President Nicos Anastasiades | | |
 |  | CZECHIA | (Prague elr + Brno dj + Lany r) |  | President Milos Zeman | | |
 |  | GERMANY | (Berlin ar + Bonn lr + Karlsruhe d) |  | Bundespresident Frank-Walter Steinmeier | | |
 |  | DENMARK | (Copenhagen) |  | Queen Margaret II | | |
 |  | ESTONIA | (Tallinn a + Tartu b) |  | President Kersti Kaljulaid | | |
 |  | SPAIN | (Madrid) |  | King Philip VI | | |
 |  | EUROPEAN UNION | (Brussels a + Luxembourg j + Strasbourg l) |  | President Ursula von der Leyen | | |
 |  | FINLAND | (Helsinki a + Kultaranta s) |  | President Sauli Niinisto | | |
 |  | FRANCE | (Paris) |  | President Emmanuel Macron | | |
 |  | GREECE | (Athens a) |  | President Prokopis Pavlopoulos | | |
 |  | CROATIA | (Zagreb) |  | President Kolinda Grabar-Kitarovich | | |
 |  | 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 | | |
 |  | INDIA | (New Delhi a + Simla s + Bolarum w) |  | President Ram Nath Kovind | | |
 |  | ITALY | (Rome a) |  | President Sergio Mattarella | | |
 |  | JAPAN | (Tokyo) |  | Emperor Naruhito | | |
 |  | 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 | | |
 |  | LITHUANIA | (Vilnius) |  | President Gitanas Nauseda | | |
 |  | LUXEMBOURG | (Luxembourg a) |  | Grand Duke Henri | | |
 |  | LATVIA | (Riga) |  | President Egils Levits | | |
 |  | MYANMAR | (Naypyidaw a + Rangoon bn) |  | President Win Myint | | |
 |  | MONGOLIA | (Ulan-Bator) |  | President Khaltmaagiin Battulga | | |
 |  | MALTA | (Valletta a + Attard r + Siggiewi s) |  | President George Vella |  | |
 |  | 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 | | |
 |  | NEW ZEALAND | (Wellington) |  | Queen Elizabeth II | | |
 |  | 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 | | |
 |  | ROMANIA | (Bucharest) |  | President Klaus Iohannis | | |
 |  | RUSSIA | (Moscow a + Saint Petersburg d) |  | President Vladimir Putin | | |
 |  | SWEDEN | (Stockholm) |  | King Charles XVI Gustav | | |
 |  | SINGAPORE | (Singapore) |  | President Halimah Yacob | | |
 |  | SLOVENIA | (Ljubljana) |  | President Borut Pahor | | |
 |  | SLOVAKIA | (Bratislava a + Kosice d) |  | President Zuzana Caputova | | |
 |  | THAILAND | (Bangkok) |  | King Rama X. Vajiralongkorn | | |
 |  | UNITED KINGDOM | (London a + Westminster lr + Edinburgh s + Windsor r) | | Queen Elizabeth II | | |
 |  | VIETNAM | (Hanoi) |  | Nguyen Phu Trong | | |
 |  | ASEAN | (Jakarta) |  | SG Dato Paduka Lim Jock Hoi (bn) | | |
