Idar-Oberstein station serves the town of Idar-Oberstein in the German state of Rhineland-Palatinate. It is on the Nahe Valley Railway (German: Nahetalbahn) and is classified by Deutsche Bahn as a category 4 station. It is regularly served by Regional-Express and Regionalbahn services and in the past it was served by freight traffic. The station is located in the centre of Idar-Oberstein.