Cormier may refer to:
In people:
- Charles Cormier (1813 – 1887), a Quebec businessman and political figure
- Chris Cormier (born 1967), a professional bodybuilder
- Clément Cormier (1910 – 1987), a Canadian Priest, academic and the vice chancellor
- Daniel Cormier, an American Mixed Martial Artist
- Ernest Cormier (1885 - 1980 ), a Quebec engineer and architect
- J. P. Cormier, a Canadian singer-songwriter and multi-instrumentalist
- Lance Cormier (born 1980), a baseball pitcher
- Len Cormier (1924 – 2008), U.S. aerospace industry
- Patrice Cormier (born 1990), Canadian ice hockey player
- Rheal Cormier (born 1967), a baseball pitcher
- Robert Cormier (1925 – 2000 ), an American author, columnist, and newspaper reporter
- Robert Cormier (Colonist) (1602 – 1712), a French colonizer, ship’s carpenter and family founder
- Robert De Cormier, an American musical conductor, arranger, and director
In places:
- Cormier Village, New Brunswick, a small village east of Shediac, New Brunswick, Canada, site of the Cormier Village hayride accident
- Le Cormier, a commune in the Eure department in northern France
- Saint-Aubin-du-Cormier, a commune in the Ille-et-Vilaine department in Bretagne in northwestern France