Grenier is a surname. Notable people with the surname include:Adrian Grenier Angèle Grenier, Canadian maple syrup producer Auguste Jean François Grenier (1814–1890), French doctor and entomologist Clément Grenier Eustace Grenier Henri-Georges Grenier Jacques Raymond de Grenier du Giron, French Navy officer Jean Charles Marie Grenier (1808–1875), French botanist and naturalist John Grenier Louis Grenier, fictional character Martin Grenier Philippe Grenier Richard Grenier (disambiguation) Robert Grenier, a former CIA officer Robert Grenier (poet) Roger Grenier Suzanne Blais-Grenier Sylvain Grenier Walter I Grenier, Lord of Caesarea Zach Grenier
