Rotberget is a village in Grue Municipality in Innlandet county, Norway. The village is located in the Finnskogen district, about 3.5 kilometres (2.2 mi) west of the Swedish border.

Starting on 1 January 1838, Rotberget was administratively a part of Hof Municipality. On 1 January 1963, Hof became a part of Åsnes Municipality, and then on 1 January 1969 Rotberget was transferred to Grue Municipality. At that time Rotberget had twenty three inhabitants.