La Roche-Derrien

La Roche-Derrien (Ar Roc'h-Derrien) is a former commune in the Côtes-d'Armor department of Brittany in northwestern France. On 1 January 2019, it was merged into the new commune La Roche-Jaudy.

Population
Inhabitants of La Roche-Derrien are called rochois in French.