Mortagne may refer to: Mortagne (river), a river in northeastern France places in France: Mortagne, Vosges, in the Vosges department Mortagne-au-Perche, in the Orne department Mortagne-du-Nord, in the Nord department Mortagne-sur-Gironde, in the Charente-Maritime department Mortagne-sur-Sèvre, in the Vendée department Bec-de-Mortagne, in the Seine-Maritime department