Sauzon is a commune on the island of Belle Île in the Morbihan department of the region of Brittany in north-western France. Inhabita…Sauzon is a commune on the island of Belle Île in the Morbihan department of the region of Brittany in north-western France. Inhabitants of Sauzon are called Sauzonnais. Sauzon is one of the four communes of Belle-île en Mer. The town occupies the northwestern part of the island. The village center is located at the mouth of the Sauzon river, 5.8 km northwest of Le Palais.