Borgøy (alternately spelled Borgøya or Borgøyna) is an island in Tysvær municipality in Rogaland county, Norway.

The 4.5-square-kilometre (1.7 sq mi) island is located at the southern end of the Skjoldafjorden.

The highest point on the island is the 292-metre (958 ft) tall mountain Borgøyhatten.

[1] The island is accessible only by boat as there are no bridge or tunnel connections.

The main population centre is the relatively flat southwestern coast of the island.