Flatman is a surname. Notable people with the surname include: Barry Flatman, Canadian actor David Flatman (born 1980), English rugby player Frederick Flatman (1843–1911), New Zealand Member of Parliament Nat Flatman, 19th-century English champion jockey Thomas Flatman (1637–1688), English poet and miniature painter See also Flatman (comics), Marvel Comics character and member of the Great Lakes Avengers