The Oberbergischer Kreis is a Kreis (district) in the state of North Rhine-Westphalia, Germany. Neighboring districts are Ennepe-Ruhr, Märkischer Kreis, Olpe, Altenkirchen, Rhein-Sieg, Rheinisch-Bergischer Kreis, and the urban districts Remscheid and Wuppertal.

The Ennepe-Ruhr-Kreis is a district in the center of North Rhine-Westphalia, Germany. It is part of the southern Ruhr urban area and has ca. 324,000 inhabitants (2012). The district's seat is Schwelm; the largest of its nine towns is Witten.