Øyangen is a lake in Innlandet county, Norway.

The lake lies about 5 kilometres (3.1 mi) to the south of the village of Beitostølen and about 5 kilometres (3.1 mi) to the northwest of the village of Skammestein.

The lake is regulated for hydroelectric power generation.

It serves as a reservoir for the nearby Lomen power plant.

This article related to a lake in Innlandet in Norway is a stub.