Clem may refer to:
Places Clem, Oregon, United States, an unincorporated community Clem, West Virginia, United States, an unincorporated community Clem Nunatak, a nunatak in the Ross Dependency, Antarctica
Other uses Clem (hill), a categorisation of British hills Clem (horse), an American Thoroughbred racehorse active in the 1950s Clem (name), a list of people with the given name, nickname or surname Clem (TV series), a French TV series Clem., author abbreviation for the plant ecologist Frederic Clements Correlative Light-Electron Microscopy (CLEM) Clem, another name for the character in Kilroy was here graffiti
See also Clems, California, a ghost town Clementine (disambiguation) Klem, a surname (includes a list of people with the name)