Montabaur station is a station at the 89.1 kilometre point of the Cologne-Frankfurt high-speed railway and on the Limburg–Siershahn railway in the German state of Rhineland-Palatinate. The station, which is served by regional and long-distance passenger services and freight traffic, is on the outskirts of the town of Montabaur. It is aligned parallel with Autobahn 3 (A3), which runs immediately to the north.

The Cologne–Frankfurt high-speed rail line is a 180-kilometre-long (110 mi) railway line in Germany, connecting the cities of Cologne and Frankfurt. Its route follows the Bundesautobahn 3 for the greater part, and currently the travel time is about 62 minutes. The line's grades of up to four percent require trains with a high power-to-weight ratio which is currently only met by third-generation and fourth-generation Intercity-Express trains, with the latter operating at reduced speeds. It was constructed between 1995 and 2002 at a total cost of six billion Euro according to Deutsche Bahn.