League of Nations members
Twenty-eight countries were members of the League of Nations for its entire existence. Another 35 countries joined or withdrew at various times.
1919
- Argentina
- Australia
- Beligum
- Bolivia
- Brazil withdrew 1926
- Canada
- Chile withdrew 1938
- China
- Colombia
- Cuba
- Czechoslovakia
- Denmark
- El Salvador withdrew 1937
- France
- Greece
- Guatemala withdrew 1936
- Haiti withdrew 1942
- Honduras withdrew 1936
- India
- Italy withdrew 1937
- Japan withdrew 1933
- Liberia
- Netherlands
- New Zealand
- Nicaragua withdrew 1936
- Norway
- Panama
- Paraguay withdrew 1935
- Persia
- Peru withdrew 1939
- Poland
- Portugal
- Romania withdrew 1940
- Siam
- Spain withdrew 1939
- Sweden
- Switzerland
- Union of South Africa
- United Kingdom
- Uruguay
- Venezuela withdrew 1938
- Kingdom of Yugoslavia
1920
- Albania left 1939
- Austria left 1938
- Bulgaria
- Costa Rica withdrew 1925
- Finland
- Luxembourg
1921
1922
- Hungary withdrew 1939
1923
1924
1926
- Germany withdrew 1933
1931
1932
1934
- Afghanistan
- Ecuador
- Union of Soviet Socialist Republics expelled 1939
1937
Countries are listed under the year they joined. Countries with the word "withdrew" next to them indicate the country left under their own choice. Countries with the word "left" next to them are countries that ceased to exist because of annexation by either Germany or Italy. The USSR was the only country to be expelled by the League. The United States never joined the League of Nations.