Tanzer or Tänzer is a surname; Tänzer meaning "dancer" in German. Notable people with the surname include:
Andreas Tanzer (born 1989), German ice hockey player Jacob Tanzer (1935–2018), American attorney Johann Tanzer, Canadian sailboat designer Katharina Tanzer (born 1995), Austrian judoka Kurt Tanzer (1920–1960), World War II Luftwaffe fighter ace Philipp Tanzer (born 1977), German men's rights activist Stephen Tanzer, American wine critic Tommy Tanzer, American baseball agent William Tans'ur (born Tanzer, 1706–1783), English hymn-writer, composer and teacher of music
Tänzer Aaron Tänzer (1871–1937), Austrian rabbi Mihai Tänzer (; 1905–1993), Hungarian-Romanian football player Willy Tänzer (1889–1949), German footballer
See also Tanzer Industries, a Canadian boat builder, 1966–86