The Hohenhewen, also called the Hohenhöwen or, colloquially, Höwen, is the local mountain of the town of Engen in the Hegau region of southern Germany.

The summit of the Hohenhewen lies at 843.7 m above sea level (NHN)[1], rising above the surrounding area by around 300 metres.

On its summit plateau are the ruins of Hohenhewen Castle and a viewing platform built on the remains of the old bergfried, from where the other mountains and hills of the Hegau, Lake Constance and, to the north, the Swabian Jura, can be seen.

Whilst the northern ascent is fairly wide and comfortable (T1), the climb from Welschingen is much steeper and narrower and requires a certain degree of sure-footedness (T2).

A 39-hectare area on the Hohenhewen has been designated a nature reserve since 1982 and its steep eastern mountainside is of particular botanical interest.