Svanøy (also called Svanøyna and Brulandet) is an island in the municipality of Kinn in Vestland county, Norway.

The 10-square-kilometre (3.9 sq mi) island of Svanøy is heavily forested with many hills and small mountains.

On Svanøy, there are plants and trees that usually are not found on the west coast of Norway, such as holly.

A stone cross was erected at Brandsøy on the mainland in honor of St. Olaf, and later it was moved to the island.

The name comes from the Bishop Hans Svane who owned the main farm and manor on the island from 1662—1685.