Halsnøya (locally called Halsne) is an island in Stavanger municipality in Rogaland county, Norway.

[1] The island is hilly with some forest, where there are deer and pine marten.

The bird life is rich, including a large grey heron colony.

The rest of the island is cultivated for farming or pasture land.

The 214-metre (702 ft) tall Eikefjellet mountain is the highest point on the island.