The Mainhardt Forest is a hill range up to 586.4 m above sea level (NHN)[1] in the counties of Schwäbisch Hall and Heilbronn, Hohenlohekreis and Rems-Murr-Kreis in the German state of Baden-Württemberg.

The highest point of the Mainhardt Forest is the Hohe Brach (586.4 m) between the villages of Erlach and Grab in the municipality of Großerlach.

Near Großerlach the treeless kuppe of the Altwald (552.0 m) offers a view far across the Swabian-Franconian Forest.

On the forested kuppe of the Flinsberg (also called the Flehnsberg) (534.8 m) near Oberrot are mighty outcrops of flint blocks.

On its eastern perimeter near Westheim the Steinbühl (484.4 m) rises over the Kocher valley.