Gavrinis (Breton: Gavriniz) is a small island, situated in the Gulf of Morbihan in Brittany, France. It contains the Gavrinis tomb, a megalithic monument notable for its abundance of megalithic art in the European Neolithic.The island is famous because of its important passage grave, a megalithic monument from the Neolithic period, belonging to the same broad context as the Breton megaliths of Carnac and Locmariaquer, and closely connected with the monuments at Brú na Boínne (Ireland) and Maes Howe (Orkney). At the time of its construction, c. 3500 BC, the island was still connected with the mainland. The rich internal decorations make Gavrinis one of the major treasuries of European megalithic art. The tomb is also remarkable for the care taken in its construction and its good preservation.