The Simmersberg is a mountain, sea level (NHN), near Schnett in the municipality of Masserberg) in the county of Hildburghausen in Germany. It is the main summit of a forked mountain chain, which runs along the boundary between the Thuringian Forest and the Thuringian Highland from Masserberg towards the southwest and is bounded by the valleys of the Schleuse (in the northwest) and its tributary, the Biber (in the south).