Enz is a district (Kreis) in the north-west of Baden-Württemberg, Germany. Neighboring districts are (from west clockwise) Karlsruhe, Heilbronn, Ludwigsburg, Böblingen and Calw. The district-free Pforzheim in the south is nearly completely surrounded by the district.

The Enz is a left tributary of the Neckar in Baden-Württemberg. It is 112 km long.