The Ennepe (German pronunciation: [ˈɛnəpə]) is a river,^[2] and a left tributary of the Volme in Northern Sauerland, Germany.

It gave its name to the town Ennepetal, and the district Ennepe-Ruhr-Kreis.

The Ennepe begins in the Märkischer Kreis southeast of Halver, at 422 m above sea level, and continues to the Ennepetalsperre ^[3](reservoir, 307 m above sea level).

The river flows through Ennepetal, Gevelsberg, and the western boroughs of Hagen.

It flows into the Volme, near Hagen Central Station (elevation: 99 m above sea level).

Parts of the river are canalized.

The Ennepe provides habitat for numerous animal and plant types.

Among are fishes, the grey heron, neophyte plants, and Orange Jewelweed^{[verification needed]} (Impatiens capensis, in Hagen).

In the pre-industrial age, several mills were built alongside the river.

In the 19th and 20th centuries, several small iron plants were operated there.