The Enz is a left tributary of the Neckar in Baden-Württemberg. It is 122 km long.

Its headstreams – the Little Enz and the Big Enz – rise in the northern Black Forest, the latter at Enzklösterle . In Calmbach (City of Bad Wildbad ), the Little Enz and the Big Enz join to form the Enz. The river passes through Neuenbürg and Pforzheim, where it leaves the Black Forest. It then flows through the cities of Vaihingen and Bietigheim-Bissingen . Along the lower course, wine is grown. Near Besigheim the Enz feeds into the Neckar.

In earlier times the Enz was important for floating timber.