DeMar (and variants) can be a surname and given name. Notable people with the name include:
Surname Anibal de Mar (1908–1980), Cuban radio actor Claire Démar (1799–1833), French feminist, journalist and writer Clarence DeMar (1888–1958), American marathon runner Enoch DeMar (born 1980), American football offensive lineman Gary DeMar, American writer, lecturer, and Christian theologian Larry DeMar, video game and pinball designer Matyáš Démar (born 1991), Czech volleyball player Penny Demar (born 1952), American politician Sébastien Demar (1763–1832), German pianist and composer
Given name DeMar DeRozan (born 1989), American basketball player Demar Dotson (born 1985), American football offensive tackle Demar Phillips (born 1983), Jamaican footballer Demar Rose (born 1996), Jamaican footballer Demar Stewart (born 1984), Jamaican footballer
See also Damar (disambiguation) Demarre, given name DeMars, surname DerMarr Johnson (born 1980), American basketball coach and retired NBA player