Chapelle Saint-Léonard de Kerantonel, Catholic chapel in Ploemeur, France.

The chapel stands on a rectangular plan with a single nave, built of local granite ashlar and covered by a slate roof. A small bell tower rises above the western gable, and the building sits in open countryside between the hamlets of Kerantonel and Kerguen.

The chapel stands on the old path linking the hamlets of Kerantonel and Kerguen. A bell cast in 1817 hangs in the tower, and the building was restored in 1979, when its granite walls and slate roof were consolidated.

The annual pardon celebration takes place on the first Sunday of July, drawing pilgrims who honor Saint Leonard as protector of prisoners, travelers, and agricultural workers.

The chapel houses a bell dating from 1817 that still rings during religious ceremonies, and visitors can access the upper bell tower via stairs on the western gable.

The chapel's name links it to the hamlet of Kerantonel, and the Breton form Sant Leonard is still used locally. The building stands on the old path between Kerantonel and Kerguen, so walkers on that route pass it directly rather than reaching it by road.