De Man is a Dutch surname, meaning "the man". People with this surname include:
Cornelis de Man (1621–1706), Dutch Golden Age painterFilip De Man (born 1955), Belgian politician and journalistde:Harald de Man (born 1973), Dutch skierHendrik de Man, also known as Henri de Man (1885–1953), Belgian politicianHerman de Man (1898–1946), Dutch novelistJohannes Govertus de Man (1850–1930), Dutch biologistJoris de Man, Dutch video game composer and sound designerMark De Man (born 1983), Belgian footballerPaul de Man (1919–1983), Belgian literary criticde:Roderik de Man (born 1941), Dutch composerRoelof de Man (1634–1663), Dutch administrator of the Cape Colony