Château de la Roche-Jagu

The Château de la Roche-Jagu is a 15th-century fortified house located in the commune of Ploëzal in the Côtes-d'Armor, Brittany, France. Since 1958, it has been owned and managed by the Council of the department of the Côtes-d'Armor who restored the château in 1968. Its extensive grounds are managed as a public park and the château itself houses exhibitions, concerts and other public events.

Its situation on a steep promontory on the west bank of the estuary of the Trieux, gives it a commanding view of the surrounding area and in particular of the river which it was historically able to control.