The Aachen–Mönchengladbach railway is a main line in the German state of North Rhine-Westphalia. It is an important link between the Ruhr and Belgium for freight trains and is served by regional passenger trains. The line was built by the Aachen-Düsseldorf-Ruhrort Railway Company and is one of the oldest lines in Germany, which was opened between 1852 and 1854.

Aachen Hauptbahnhof is the most important railway station for the city of Aachen, in the far west of Germany near the Dutch and Belgian border. It is the largest of the four currently active Aachen stations, and is integrated into the long-distance network.