Mapp is a surname. Notable people with the surname include:
Anna K. Mapp (born 1970), American chemist Arthur Mapp, British judoka Charles Mapp (1903–1978), British politician Corie Mapp (born 1978), British para athlete and former Lance Corporal Darren Mapp (born 1980), Australian rugby league player Eddie Mapp (c. 1910 – 1931), American blues musician G. Walter Mapp (1873–1941), American lawyer and politician Justin Mapp (born 1984), American soccer player Kenneth Mapp (born 1955), American politician Norman Mapp (1928–1988), American jazz singer and composer Owen Mapp, New Zealand carver Rhonda Mapp (born 1969), American basketball player Rue Mapp, American outdoor enthusiast and environmentalist Sally Mapp (died 1737), English bonesetter Wayne Mapp (born 1952), New Zealand politician