The Byelorussian S.S.R. (Byelorussian Soviet Socialist Republic) was one of the four original founding members of the U.S.S.R (together with Ukrainian Soviet Socialist Republic, Transcaucasian Soviet Federal Socialist Republic and the Russian Soviet Federal Socialist Republic) in 1922. After the Second World War Byelorussia was given a seat in the United Nations General Assembly together with the U.S.S.R. and Ukraine. The republic became independent in 1991 as the Republic of Belarus.

See also: Republics of the Soviet Union