Windeck is a municipality in the Rhein-Sieg district, in North Rhine-Westphalia, Germany.

35km east of Bonn and 35km west of Siegen.

Today Windeck consists of 58 villages and some hamlets and homesteads.

The most populated are: Other villages are Oppertzau, Dreisel, Werfen, Stromberg and Au an der Sieg.

In Windeck, the Leina company produces first aid kits and warning triangles.