Børøya (Norwegian) or Bierák (Northern Sami)[1] is a small island in Hadsel Municipality in Nordlandcounty, Norway.

Børøya has an area of 1.4 square kilometres (0.54 sq mi) and the highest point on the island is 52 metres (171 ft) above sea level.

Norwegian County Road 82 runs across the island connecting it to Langøya and Hadseløya.

Hadsel Municipality purchased Børøya in 1963 and planned to build residential and industrial areas on the island.

The municipality funded and built the bridge over to the island; it was officially opened on 1 July 1967.