Lapp is a surname. Notable people with the surname include: Bernice Lapp (1917–2010), American Olympic swimmer Daniel Lapp, Canadian folk musician Henry Lapp (1862–1904), American carpenter-cabinetmaker Jack Lapp (1884–1920), American professional baseball player Katherine Lapp, administrator of Harvard University Nancy Lapp (born 1930), American archaeologist and biblical scholar Oskar Lapp (1921–1987), German inventor Ralph Lapp (c. 1910–2004), American physicist Ursula Ida Lapp (1930–2021), German entrepreneur

See also