Line S8 is an S-Bahn line operated by DB Regio on the Rhine-Ruhr network.
It is operated between Düsseldorf and Wuppertal-Oberbarmen station at 20-minute intervals using class 422 electric multiple units.
[2] One out of three trains continues to Hagen, running hourly.
An S 9 service and three Regional-Express services (Wupper-Express, Rhein-Münsterland-Express and Maas-Wupper-Express) also operate between Wuppertal-Vohwinkel and Hagen each hour.
Line S 8 runs over lines built by various railway companies: S-Bahn services commenced on the whole length of the route on 29 May 1988.