33 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 Ayres a + Olivos b) | | President Marcelo Torcuato de Alvear | | |
| | AUSTRIA | (Vienna) | | President Michael Hainisch | | |
| | AUSTRALIA | (Melbourne a + Canberra l) | | King George V | | |
| | BELGIUM | (Brussels) | | King Albert I | | |
| | BULGARIA | (Sofia) | | Tsar Boris III the Unifier | | |
| | CANADA | (Ottawa) | | King George V | | |
| | SWITZERLAND | (Berne lq + Lausanne j) | | President Heinrich Haeberlin | | |
| | CZECHOSLOVAKIA | (Prague a + Lany s) | | President Tomas Garrigue Masaryk | | |
| | CUBA | (Havana) | | President Gerardo Machado | | |
| | GERMANY | (Berlin a) | | Reichpresident Paul von Hindenburg | | |
| | DENMARK | (Copenhagen) | | King Christian X | | |
| | EGYPT | (Cairo a + Alexandria r) | | King Fuad I | | |
| | SPAIN | (Madrid) | | King Alfonso XII | | |
| | FINLAND | (Helsinki a + Kultaranta s) | | President Lauri Kristian Relander | | |
| | FRANCE | (Paris) | | Frederic Francois-Marsal | | |
| | GREECE | (Athens a) | | President Pavlos Theodorou Koundouriotis | | |
| | HUNGARY | (Budapest a) | | Regent Miklos Horthy de Nagybanya | | |
| | IRELAND | (Dublin) | | Tim Healy | | |
| | INDIA | (Delhi a + Simla s) | | Viceroy Victor Bulwer-Lytton | | |
| | ITALY | (Rome a) | | King Victor Emmanuel III | | |
| | JAPAN | (Tokyo) | | Emperor Yoshihito | | |
| | NETHERLANDS | (Amsterdam a + The Hague jlr + Wassenaar r) | | Queen Wilhelmina | | |
| | NORWAY | (Oslo) | | King Haakon VII | | |
| | NEW ZEALAND | (Wellington) | | King George V | | |
| | CHINA | (Peking) | | Tuan Chi-Jui | | |
| | RUMANIA | (Bucharest) | | King Ferdinand I | | |
| | HEJAZ AND NEJD | (Riyadh a + Mecca b) | | Sultan Abdul Aziz bin Saud | | |
| | SWEDEN | (Stockholm) | | King Gustav V | | |
| | SOVIET UNION | (Moscow) | | Joseph Stalin | | |
| | TURKEY | (Angora a) | | President Mustafa Kemal Pasha | | |
| | UNITED KINGDOM | (London a + Westminster lr + Edinburgh s + Windsor r) | | King George V | | |
| | AMERICA | (Washington-District of Columbia) | | President Calvin Coolidge | | |
| | JUGO-SLAVIA | (Belgrade) | | King Alexander I. the Unifier Karageorgevich | | |