Niedernhausen station serves the municipality of Niedernhausen in the German state of Hesse. It is the most important station on the Main-Lahn Railway between the stations of Frankfurt-Höchst and Eschhofen in Limburg an der Lahn. It is the terminus of the Ländches Railway running from Niedernhausen to Wiesbaden Hauptbahnhof and of line S2 of the Rhine-Main S-Bahn from Frankfurt.

Niedernhausen im Taunus is a municipality in the Rheingau-Taunus-Kreis in the Regierungsbezirk of Darmstadt in Hesse, Germany, with almost 15,000 inhabitants.