Gamelin is a surname. Notable people with the surname include:
Gamelin (bishop) (died 1271), Scottish bishop Alexander Gamelin (born 1993), American ice dancer Émilie Gamelin (1800–1851), Canadian social worker Jacques Gamelin (1738–1803), French artist Maurice Gamelin (1872–1958), French general, in command at the start of World War II Theodore Gamelin (born 1939), American mathematician
Other Gamelin (electoral district), Canada Ffordd Gam Elin, a Roman road in the Berwyn area in Wales