Bennewitz is a German surname. Notable people with the surname include:
Peter Bennewitz (1495–1552), birth name of Petrus Apianus, German humanist
Philipp Bennewitz (1531–1589), birth name of Philipp Apian, German mathematician, doctor, cartographer
Antonín Bennewitz (1833–1926), Czech violinist, conductor and music teacher
Rick Bennewitz (1936–1999), an American television soap opera director
Paul Bennewitz (1927-2005), an American businessman