The Stepenitz is a river in the district of Prignitz, Brandenburg, Germany.

The Stepenitz's source is about five kilometers south of Meyenburg.

Along with the Karthane, the Stepenitz flows into the Elbe at Wittenberge.

The Gänsetour ("geese tour") is an approximately 70 km long bicycle route along the Stepenitz.

This article related to a river in Brandenburg is a stub.