Skasen is a lake in the municipalities of Grue and Kongsvinger in Innlandet county, Norway. The 13.41-square-kilometre (5.18 sq mi) lake lies in the Finnskogen forest area about 16 kilometres (9.9 mi) to the southeast of the village of Kirkenær and about 28 kilometres (17 mi) northeast of the town of Kongsvinger.