Rotberget is a small village in the municipality of Grue, Norway. It is located in the Finnskogen district near the Swedish border.
From 1837 Rotberget was administratively a part of Hof. On 1 January 1963, Hof became a part of Åsnes municipality, but on 1 January 1969 Rotberget was moved to the neighboring municipality Grue. At that time Rotberget had twenty three inhabitants.