Église Notre-Dame de Locmariaquer, Romanesque church from the 11th century in Locmariaquer, Morbihan, France.

Notre-Dame-de-Kerdro in Locmariaquer is a Latin-cross church whose crossing carries a square tower built in 1817, topped by a timber and slate spire. The Romanesque choir and transept walls are of small archaic masonry: cubic rubble with scattered bricks and reused Roman brick courses. The 18th-century nave has three vessels on square piers, and the south door is sheltered by a projecting porch.

Built between 1082 and 1120 by monks from Quimperlé, the church was partially destroyed during English attacks in 1548 then rebuilt in the 17th and 18th centuries before being listed as a Historic Monument in 1925.

The church represents Breton religious heritage with its 17th-century altarpieces depicting the Annunciation and Visitation, a 15th-century holy water font decorated with foliage and stained glass windows illustrating local megaliths and traditions.

Located in the center of Locmariaquer village, the church is easily accessible and remains an active place of worship for the local community while welcoming visitors discovering the architectural heritage of the region.

The 1960 stained glass windows incorporate representations of local megaliths, boats and sea products, creating an artistic dialogue between the thousand-year-old Romanesque architecture and contemporary symbols of Breton maritime identity.