Vega is an island in Vega Municipality in Nordland county, Norway. The 108-square-kilometre (42 sq mi) island is the largest island in the 6,500 islands in the Vegaøyan archipelago, all of which is a UNESCO World Heritage Site. The island lies in the Norwegian Sea, about 18 kilometres (11 mi) west of the mainland of Norway. The islands of Igerøya and Ylvingen lie between Vega and the mainland. The main villages on the island are Gladstad, the administrative centre of the municipality, and Holand.