The Soviet Union ( SU; ; СС) or Union of Soviet Socialists Republics (USSR; ) was a 20th-century country based about Russia.

Soviet Union or Sovetsky Soyuz () may also refer to:

Sovetsky Soyuz (), the Soviet magazine Soviet Union (), the Soviet battleship class Soviet Union Soviet battleship Sovetsky Soyuz (), the battleship Soviet Union, lead ship of the eponymous class; see SS Sovetskiy Soyuz (), the SS Soviet Union, the name of passenger-cargo ship from 1949 to 1980 A national sports team of the Soviet Union

See also Soviet of the Union (), the lower parliamentary chamber of the Soviet Union "Koviet Union", a literal translation of Kouvostoliitto, a humorous nickname of Finnish city Kouvola Soviet (disambiguation) Union (disambiguation) CCCP (disambiguation) USSR (disambiguation) Russia (disambiguation) Sovetsky (disambiguation) Soyuz (disambiguation)