Delap or DeLap is a surname, and may refer to:
John Delap (1725–1812), English clergyman and writer Kathleen Delap (1910–2004), Irish feminist and activist Liam Delap (born 2003), English footballer Maude Delap (1866–1953), Irish marine biologist Patrick Delap (1932–1987), Irish politician Richard Delap (1942–1987), Canadian science fiction writer Robert H. DeLap (1846–1922), American politician Rory Delap (born 1976), English-born Irish footballer, father of Liam Tony DeLap (1927–2019), American sculptor Truman H. DeLap (1885–1974), American politician
See also Delap (disambiguation)