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) .