60 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 | | |
| | ARGENTINE | (Buenos Aires a + Olivos r) | | President Cristina Fernandez de Kirchner | | |
| | AUSTRIA | (Vienna) | | President Heinz Fischer | | |
| | AUSTRALIA | (Canberra) | | Quentin Bryce | | |
| | BELGIUM | (Brussels) | | King Albert II | | |
| | BURKINA FASO | (Ouagadougou) | | President Blaise Compaore | | |
| | BULGARIA | (Sofia) | | President Georgi Parvanov | | |
| | BENIN | (Porto Novo a + Cotonou ilnqr) | | President Yayi Boni | | |
| | CANADA | (Ottawa) | | Queen Elizabeth II | | |
| | CONGO-BRAZZAVILLE | (Brazzaville a + Pointe Noire n) | | President Denis Sassou-Nguesso | | |
| | SWITZERLAND | (Berne lq + Lausanne j) | | President Micheline Calmy-Rey | | |
| | COTE D´IVOIRE | (Bouake t) | | President Alassane Ouattara | | |
| | CAMEROON | (Yaounde) | | President Paul Biya | | |
| | CHINA | (Beijing) | | Hu Jintao | | |
| | CUBA | (Havana) | | Supreme Leader Fidel Castro | | |
| | CZECHIA | (Prague elr + Brno dj + Lany r) | | President Vaclav Klaus | | |
| | GERMANY | (Berlin ar + Bonn lr + Karlsruhe d) | | Bundespresident Christian Wulff | | |
| | DENMARK | (Copenhagen) | | Queen Margaret II | | |
| | ALGERIA | (Algiers a + El Biar d + El Mouradia r) | | President Abdelaziz Bouteflika | | |
| | EGYPT | (Cairo a + Alexandria r) | | President Hosni Mubarak | | |
| | SPAIN | (Madrid) | | King Juan Carlos I | | |
| | FINLAND | (Helsinki a + Kultaranta s) | | President Tarja Halonen | | |
| | FRANCE | (Paris) | | President Nicolas Sarkozy | | |
| | GABON | (Libreville) | | President Ali Ben Bongo Ondimba | | |
| | GUINEA | (Conakry) | | President Alpha Conde | | |
| | GREECE | (Athens a) | | President Karolos Papoulias | | |
| | CROATIA | (Zagreb) | | President Ivo Josipovich | | |
| | HUNGARY | (Budapest a) | | President Pal Schmitt | | |
| | IRELAND | (Dublin) | | President Mary McAleese | | |
| | ISRAEL | (Jerusalem aru + Tel Aviv-Jaffa i) | | President Shimon Peres | | |
| | INDIA | (New Delhi a + Simla s + Bolarum w) | | President Pratibha Patil | | |
| | ITALY | (Rome a) | | President Giorgio Napolitano | | |
| | JORDAN | (Amman) | | King Abdullah II | | |
| | JAPAN | (Tokyo) | | Emperor Akihito | | |
| | SOUTH KOREA | (Seoul a + Sejong f) | | President Lee Myung-Bak | | |
| | MOROCCO | (Rabat a) | | King Muhammad VI | | |
| | MADAGASCAR | (Tananarive) | | President Andry Rajoelina | | |
| | MACEDONIA | (Skopje) | | President Gjorge Ivanov | | |
| | NIGER | (Niamey) | | President Salou Djibo | | |
| | NETHERLANDS | (Amsterdam a + The Hague jlr + Wassenaar r) | | Queen Beatrix | | |
| | NORWAY | (Oslo) | | King Harald V | | |
| | NEW ZEALAND | (Wellington) | | Queen Elizabeth II | | |
| | POLAND | (Warsaw a) | | President Bronislaw Komorowski | | |
| | QATAR | (Doha) | | Emir Sheikh Hamad bin Khalifah Al Thani | | |
| | ROMANIA | (Bucharest) | | President Traian Basescu | | |
| | SERBIA | (Belgrade) | | President Boris Tadich | | |
| | RUSSIA | (Moscow a + Saint Petersburg d) | | President Dmitry Medvedev | | |
| | SAUDI ARABIA | (Riyadh) | | King Abdullah | | |
| | SUDAN | (Khartoum) | | President Omar Al-Bashir | | |
| | SWEDEN | (Stockholm) | | King Charles XVI Gustav | | |
| | SLOVENIA | (Ljubljana) | | President Danilo Turk | | |
| | SLOVAKIA | (Bratislava a + Kosice d) | | President Ivan Gasparovic | | |
| | CHAD | (Ndjamena) | | President Idriss Deby Itno | | |
| | TOGO | (Lome) | | President Faure Gnassingbe | | |
| | TUNISIA | (Tunis) | | President Zine El Abidine Ben Ali | | |
| | TURKEY | (Ankara a) | | President Abdullah Gul | | |
| | UNITED KINGDOM | (London a + Westminster lr + Edinburgh s + Windsor r) | | Queen Elizabeth II | | |
| | AMERICA | (Washington-District of Columbia) | | President Barack Obama | | |
| | UZBEKISTAN | (Tashkent a + Durman r) | | President Islam Karimov | | |
| | VIETNAM | (Hanoi) | | Nong Duc Manh | | |