Phare de l'Île Louët, Lighthouse on Île Louët in Carantec, France.

The Phare de l'Île Louët is a square white lighthouse tower with a black upper section, built against the gable of a keeper's house on a rocky islet in Morlaix Bay. Small rectangular windows are set in the white masonry below a projecting gallery with a dark metal railing, above which sits a glazed lantern under a domed dark roof. The low white house attached to the tower has a grey pitched roof.

Construction of the lighthouse began in 1857 on the rocky island off Carantec. Lighthouse keepers maintained the facility continuously until its automation during the 1960s.

The lighthouse serves as a reliable navigation landmark for local fishermen and sailors in Morlaix Bay. It shapes the daily rhythm of maritime work and represents safety at sea for the region's inhabitants.

The former keepers' house is managed by the town of Carantec and rented out in summer, from April to the end of August, for up to ten people. It has a kitchen, three bedrooms and a bathroom in a small outbuilding where the shower is cold-water only. The island lies 250 m north of Tahiti beach at Carantec and 300 m south of the Château du Taureau.

The keeper's house is rented out by the town of Carantec from April to the end of August and sleeps up to ten people; its shower runs only with cold water. The keeper's daughter Marie Réguer recalled that in rough weather her mother waved a black cloth from the island to tell the children the crossing to school was too dangerous.