41 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. ] :
 |  | 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 |  | |
 |  | BELGIUM | (Brussels al + Bruges j) |  | King Philippe | | |
 |  | BULGARIA | (Sofia) |  | President Rumen Radev | | |
 |  | CANADA | (Ottawa) |  | Mary Simon |  | |
 |  | SWITZERLAND | (Berne lq + Lausanne j) |  | President Ignazio Cassis | | |
 |  | CZECHIA | (Prague elr + Brno dj + Lany r) |  | President Milos Zeman | | |
 |  | GERMANY | (Berlin ar + Bonn lmr + Karlsruhe d) |  | Bundespresident Frank-Walter Steinmeier | | |
 |  | DENMARK | (Copenhagen as + Hillerod r) |  | Queen Margaret II | | |
 |  | ESTONIA | (Tallinn a + Tartu b) |  | President Alar Karis | | |
 |  | SPAIN | (Madrid) |  | King Philip VI | | |
 |  | FINLAND | (Helsinki a + Kultaranta s) |  | President Sauli Niinisto | | |
 |  | FRANCE | (Paris a + Bormes-Les-Mimosas s) |  | President Emmanuel Macron | | |
 |  | GREECE | (Athens a) |  | President Ekaterini Sakellaropoulou | | |
 |  | CROATIA | (Zagreb) |  | President Zoran Milanovich | | |
 |  | HUNGARY | (Budapest a) |  | President Katalin Novak | | |
 |  | IRELAND | (Dublin) |  | President Michael Daniel Higgins | | |
 |  | ITALY | (Rome a) |  | President Sergio Mattarella | | |
 |  | JAPAN | (Tokyo an + Kyoto r + Nasu s + Shimoda s + Hayama w) |  | Emperor Naruhito |  | |
 |  | SOUTH KOREA | (Seoul adknr + Sejong b + Gyeryong m) |  | President Yoon Suk-Yeol | | |
 |  | LITHUANIA | (Vilnius) |  | President Gitanas Nauseda | | |
 |  | LUXEMBOURG | (Luxembourg a) |  | Grand Duke Henri | | |
 |  | LATVIA | (Riga) |  | President Egils Levits | | |
 |  | MALTA | (Valletta a + Attard r + Siggiewi s) |  | President George Vella |  | |
 |  | MEXICO | (Mexico City) |  | President Andres Manuel Lopez Obrador | | |
 |  | NETHERLANDS | (Amsterdam a + The Hague jlmr + Wassenaar r) |  | King Willem-Alexander | | |
 |  | NORWAY | (Oslo) |  | King Harald V | | |
 |  | NEW ZEALAND | (Wellington) |  | Queen Elizabeth II | | |
 |  | POLAND | (Warsaw ac) |  | President Andrzej Duda | | |
 |  | PORTUGAL | (Lisbon) |  | President Marcelo Rebelo de Sousa | | |
 |  | ROMANIA | (Bucharest) |  | President Klaus Iohannis | | |
 |  | RUSSIA | (Moscow a + Saint Petersburg d + Sochi s + Valdai s) |  | President Vladimir Putin | | |
 |  | SWEDEN | (Stockholm) |  | King Charles XVI Gustav | | |
 |  | SLOVENIA | (Ljubljana) |  | President Borut Pahor | | |
 |  | SLOVAKIA | (Bratislava a + Kosice d) |  | President Zuzana Caputova | | |
 |  | TURKIYE | (Ankara a + Marmaris s) |  | President Recep Tayyip Erdogan | | |
 |  | UKRAINE | (Kyiv) |  | President Volodymyr Zelensky | | |
 |  | UNITED KINGDOM | (London a + Westminster lr + Edinburgh s + Windsor r) | | Queen Elizabeth II | | |
 |  | AMERICA | (Washington-District of Columbia a + Arlington m) |  | President Joe Biden | | |
 |  | SOUTH AFRICA | (Pretoria aem + Cape Town l + Bloemfontein j + Johannesburg d) |  | President Cyril Ramaphosa | | |
Sources are available upon request.
