The Rhein-Wupper-Bahn is a Regionalbahn service in the German state of North Rhine-Westphalia. It connects the cities of Wuppertal, Solingen, Leverkusen, Cologne and Bonn and it is operated by National Express.

Wuppertal-Oberbarmen station is located in the city of Wuppertal in the German state of North Rhine-Westphalia. Historically, it served as a significant railway junction, connecting to four railway lines. Presently, the station is served by two remaining lines: the Dortmund–Wuppertal main line and the branch line to Solingen.