De Camp, or DeCamp, or Decamp is a surname. Notable people with the surname include:
Vincent De Camp (1777–1839), British stage actor L. Sprague de Camp (1907–2000), American science fiction and fantasy writer Catherine Crook de Camp (1907–2000), American writer, wife of L. Sprague Caroline Middleton DeCamp (1926–2000), British politician John DeCamp (1941–2017), state senator and author Joseph DeCamp (1858–1923), American painter Rosemary DeCamp (1910–2001), American actress C. M. DeCamp, national champion college football player
See also DeCamp, California, community in Mendocino County De Camp, Missouri, a ghost town DeCamp Bus Lines, bus company serving northern New Jersey Camp (surname)