Gepp is a surname, and may refer to:
Ethel Sarel Gepp (1864-1922), English phycologist Gerhard Gepp (1940–2024), Austrian illustrator and designer H. W. Gepp (1877–1954), Australian industrial chemist, businessman and public servant Mark Gepp ( 2010s), Australian politician Tim Gepp (born 1960), Australian rules footballer
See also Gepp, Arkansas, an unincorporated community in the U.S. Gepps Cross, South Australia, a suburb of Adelaide, Australia GEPP, Mexican-owned PepsiCo bottling company