Holtermann is a surname. Notable people with the surname include:
Bernhardt Holtermann (1838-1885), German gold miner in Australia
Hans Reidar Holtermann (1895-1966), Norwegian army officer
Ove Bjelke Holtermann (1852–1936), Norwegian architect, uncle of Hans Reidar
Peter Høier Holtermann (1820–1865), Norwegian architect, uncle of Ove Bjelke and granduncle of Hans Reidar