Troisdorf station is a railway junction in the town of Troisdorf in the German state of North Rhine-Westphalia, where the line from Cologne separates into the East Rhine Railway to Neuwied and the Sieg Railway to Siegen.

In addition to various regional rail services Troisdorf is served by the S 12 and S 13.

[5] It is classified by Deutsche Bahn as a category 3 station.

In the course of the construction of high-speed line, the three platforms were rebuilt and raised.

Renovation or replacement of the station building is being planned.