Armand-Guy-Simon de Coetnempren, comte de Kersaint, in short Armand de Kersaint (29 July 1742—4 December 1793), was a French sailor and politician. A Girondin, Kersaint held important naval posts during the early stages of the French Revolution. His brother, Guy Pierre Kersaint (1747–1822), also served in the navy and took part in the American War of Independence.