Naoshima is an island in Japan's Seto Inland Sea, part of Kagawa Prefecture. The island is best known for its many contemporary art installations and museums. The Town of Naoshima administers Naoshima and 26 smaller islands nearby. As of 2020, the town has an estimated population of 3,026 and a density of 210 persons per km2. The total area is 14.22 km2. Naoshima Island is known for its many contemporary art museums.