Lorimier is a surname. Notable people with the surname include:
Claude-Nicolas-Guillaume de Lorimier (1744–1825), businessman, official and political figure in Lower Canada
François-Marie-Thomas Chevalier de Lorimier (1803–1839), notary who fought for the independence of Lower Canada
Louis Lorimier (1748–1812), born in the Etienne parish of Montréal, Quebec, Canada