Pierre-Louis-Charles Rigault de Genouilly (April 12, 1807 in Rochefort, Charente-Maritime – May 4, 1873 in Barcelona) was a nineteenth-century French admiral. He fought with distinction in the Crimean War and the Second Opium War, but is chiefly remembered today for his command of French and Spanish forces during the opening phase of the Cochinchina campaign (1858–62), which inaugurated the French conquest of Vietnam.