Gangut (Гангут) is the Russian transliteration of the Swedish name (Hangö udd) for Hanko Peninsula. It may have the following meanings:
- The Battle of Gangut in 1714
- Ships of the Imperial Russian Navy named after the battle:
- Gangut, 92-gun first rate ship of the line, launched in 1719
- Gangut, 84-gun third rate ship of the line, launched in 1825, participated in Battle of Navarino, converted to screw in 1854, training ship in 1862, decommissioned in 1871
- Russian battleship Gangut (1888)
- Russian battleship Gangut (1909)
- Gangut class battleship
- Ships of the Imperial Russian Navy named after the battle:
- The Russian name for the town of Hanko during the time Finland was a Grand duchy of the Russian Empire.
- The "Invincible Gangut" (Непокоренный Гангут), The Hanko Soviet naval base in Finland 1940–41 leased by Finland to the Soviet Union in the Moscow Peace Treaty that ended the Winter War.