The Ottilienberg is a mountain near Eppingen in Baden-Württemberg, Germany.

The mountain has been a cult place in ancient times.

The mountain itself is a sandstone oval about 3 km south east of Eppingen.

Because of the extraordinary geological formation, the 310 m high mountain is assumed to be a very early refuge and cult place.

While the fortress decayed through the following decades, the church and some surrounding economy buildings did remain, until they were severely damaged during World War II in April 1945.