Akksjøen is a lake in Nordre Land Municipality in Innlandet county, Norway. The 3.99-square-kilometre (1.54 sq mi) lake lies in the southwest part of the municipality, about 8 kilometres (5.0 mi) to the southwest of the village of Dokka and about 5 kilometres (3.1 mi) to the south of the village of Nordsinni. The lake is 5 kilometres in length and around 1 kilometre in width and has a surface area of 3.99 km².