​CANCALE, a fishing port of north-western France in the department of Ille-et-Vilaine on the Bay of Cancale, 9 m. E.N.E. of St Malo by road. Pop. (1906) town 3827, commune 7061. It exports oysters, which are found in its bay in large numbers and of excellent quality, and equips a fleet for the Newfoundland cod-fisheries. The harbour is protected by the rocks known as the Rochers de Cancale. In 1758 an English army under the duke of Marlborough landed here for the purpose of attacking St Malo and pillaged the town. It was again bombarded by the English in 1779.