Tamminen is a Finnish surname. Notable people with the surname include:
Henri Tamminen (born 1993), Finnish ice hockey player
Juhani Tamminen (born 1950), Finnish ice hockey player
Kauko Tamminen (1920-1989), Finnish politician
Laura Tamminen, Finnish speed skater
Noora Tamminen (born 1990), Finnish professional golfer
Taavi Tamminen (1889–1967), Finnish sport wrestler
Tarja Kallio-Tamminen, Finnish philosopher
Terry Tamminen (born 1952), American writer