Karlheinz is a German given name, composed of Karl and Heinz. Notable people with that name include:
Karlheinz Böhm (1928–2014), Austrian actorKarlheinz Brandenburg (born 1954), audio engineerKarlheinz Deschner (born 1924), German agnosticKarlheinz Essl (born 1960), Austrian composer, performer, sound artist, improviser and composition teacherKarlheinz Förster (born 1958), former German football playerKarlheinz Hackl (born 1949), Austrian actorKarlheinz Kaske (1928–1998), German manager and CEO of the Siemens AGKarlheinz Klotz (born 1950), West German athleteKarlheinz Martin (1886–1948), German stage and film directorKarlheinz Oswald (born 1958), German sculptorKarlheinz Pflipsen (born 1970), retired German soccer playerKarlheinz Schreiber (born 1934), German-born lobbyist, fundraiser, arms dealer and businessmanKarlheinz Stockhausen (1928–2007), German composerKarlheinz Zöller (1928–2005), German flutist