Meinhof () is a German surname. Notable people with the surname include:
Carl Meinhof (1857–1944), German linguist Ulrike Meinhof (1934–1976), West German journalist, author, left-wing militant, co-founder of the Red Army Faction, daughter of Werner Ulrike Hanna Meinhof, professor and Chair of Cultural Studies at the University of Bradford Werner Meinhof (1901–1940), German historian, brother of Carl
See also Baader-Meinhof (disambiguation)