DeMott or De Mott is a given name and a surname. Notable people with the name include:
Middle name James DeMott Condit (1821-1863), American politician and soldier
Surname Ben Demott (1889–1963), Baseball pitcher Benjamin DeMott (1924–2005), American English professor Bill DeMott (born 1966), American retired professional wrestler John De Mott (1790–1870), American businessmen and politician Robert DeMott (born 1943), American author and scholar Wes DeMott, American political thriller writer
See also Demott–Westervelt House, historic house in New Jersey, United States