There are currently 193 member states in the United Nations. The original 51 member states in 1945 were:
- Argentina
- Australia
- Belarus (then known as the Byelorussian Soviet Socialist Republic)
- Belgium
- Bolivia
- Brazil
- Canada
- Chile
- China
- Colombia
- Costa Rica
- Cuba
- Czechoslovakia (now the Czech Republic and Slovakia)
- Denmark
- Dominican Republic
- Ecuador
- Egypt
- El Salvador
- Ethiopia
- France
- Greece
- Guatemala
- Haiti
- Honduras
- India
- Iran
- Iraq
- Lebanon
- Liberia
- Luxembourg
- Mexico
- Netherlands
- New Zealand
- Nicaragua
- Norway
- Panama
- Paraguay
- Peru
- Philippines
- Poland
- Portugal
- Saudi Arabia
- South Africa
- Syria
- Turkey
- Ukraine (then known as the Ukrainian Soviet Socialist Republic)
- Union of Soviet Socialist Republics (now the Russian Federation)
- United Kingdom
- United States
- Uruguay
- Venezuela
- Yugoslavia (now Bosnia and Herzegovina, Croatia, Montenegro, North Macedonia, Serbia, and Slovenia) .
