Varaldsøy is an island in the municipality of Kvinnherad in Vestland county, Norway. The 45.4-square-kilometre (17.5 sq mi) island is the largest island in the Hardangerfjorden. Most of the inhabitants live on the southern tip of the island in the village of Varaldsøy, where Varaldsøy Church is located. The 600-metre (2,000 ft) tall mountain Øyefjellet is the highest point on the island.