The Gruiten–Cologne-Deutz railway is a major German railway. It is part of a major axis for long distance and regional rail services between Wuppertal and Cologne, and is served by Intercity Express, InterCity, Regional-Express and regionalbahn trains.

Köln-Mülheim is a railway station situated at Mülheim, Cologne in western Germany. It is served by several regional trains, the S6 and S11 lines of the Rhine-Ruhr S-Bahn and the 13 and 18 lines of Cologne Stadtbahn.