The Duisburg-Ruhrort–Mönchengladbach railway is a historically significant, but now partly abandoned line in the German state of North Rhine-Westphalia. The line was built by the Ruhrort-Crefeld District Gladbach Railway Company (German: Ruhrort–Crefeld−Kreis Gladbach Eisenbahngesellschaft, RCG), founded in 1847, and is one of the oldest lines in Germany, opened in 1849 and 1851.