Grenier is a surname. It is a French word for "attic," "loft," or "granary". It may refer to:
People
Middle Ages Various members of the House of Grenier: Balian Grenier (1190s–1241), Count of Sidon Eustace Grenier (c. 1070–1123), Flemish crusader Gerard Grenier (died between 1165 and 1171), a nobleman from the Kingdom of Jerusalem, eldest son of Eustace Guy Grenier (), Lord of Caesarea, son of Hugh Hugh Grenier (died between 1168 and 1174), Lord of Caesarea, son of Walter I Julian Grenier (died 1275), Count of Sidon, son of Balian Juliana Grenier (died between 1213 and 1216), Lady of Caesarea, sister of Walter II Reginald of Sidon or Reginald Grenier (1130s–1202), Lord of Sidon, son of Gerard Walter I Grenier (c. 1113–early 1150s), Lord of Caesarea, twin brother of Gerald Walter II Grenier (died between 1189 and 1191), Lord of Caesarea, son of Hugh Grenier Walter III of Caesarea or Walter Grenier ((before 1180–1229), Constable of the Kingdom of Cyprus and Lord of Caesarea
Modern world Adrian Grenier (born 1976), American actor Albert Grenier (1939–2026), Canadian pianist and academic Albert Grenier (historian) (1878–1961), French historian, theologian, and archaeologist Alexandre Grenier (born 1991), Canadian ice hockey player Angèle Grenier, Canadian maple syrup producer Auguste Jean François Grenier (1814–1890), French doctor and entomologist Cadyn Grenier (born 1996), American former baseball player Clément Grenier (born 1991), French footballer Dominique Grenier (born 1928), Canadian politician, mayor of Shawinigan Emmanuel Grenier (born 1970), French mathematician Fernand Grenier (Canadian politician) (1927–1988) Fernand Grenier (French politician) (1901–1992) Henri Grenier (1899–1980), Canadian priest, theologian and philosopher Hugo Grenier (born 1996), French tennis player Jacques de Grenier (1736–1803), French Navy officer Jean Grenier (1898–1971), French philosopher and writer Jean Charles Marie Grenier (1808–1875), French botanist and naturalist Jim Grenier, American politician John Grenier (1930–2007), American politician and lawyer Joseph Richard Grenier (1852–1926), barrister and a Puisne Judge of the Supreme Court of Ceylon Joshua Grenier (born 1979), American former soccer player Katia Grenier, French microwave and microfluidics engineer Marie-Louise Grenier (1845–1925), stage name Nouma-Hawa, French circus lion tamer Lucien Grenier (ice hockey) (born 1946), Canadian National Hockey League player Lucien Grenier (politician) (1925–1998), Canadian lawyer and politician Martin Grenier (born 1980), Canadian former professional ice hockey player Mikaël Grenier, Canadian racing driver Pasquier Grenier (), tapestry and wine merchant from the Burgundian South Netherlands Paul Grenier (1768–1827), French general under Napoleon and later politician Philippe Grenier (1865–1944), French politician who converted to Islam, first Muslim member of the French Parliament Richard Grenier (ice hockey) (born 1952), Canadian ice hockey player Richard Grenier (newspaper columnist) (1926–2002), American columnist and film critic Robert Grenier (CIA officer), retired Central Intelligence Agency officer, director of the Counterterrorism Center (2004–2006) Robert Grenier (poet) (born 1941), American poet Roger Grenier (1919–2017), French writer and journalist Stéphane Grenier (soldier), Canadian-French officer Stéphane Grenier (tennis) (born 1968), French former tennis player Sylvain Grenier (born 1977), Canadian semi-retired professional wrestler Vincent Grenier (1948–2023), Canadian avant-garde filmmaker Zach Grenier (), American actor
Fictional characters Louis Grenier, in William Faulkner novels and stories
See also Suzanne Blais-Grenier