Seelbach (Westerwald) () is a municipality in the district of Altenkirchen, in Rhineland-Palatinate, Germany.
The former train station Flammersfeld, which currently is out of service for passenger trains, is located in Seelbach on the railway lines Engers-Au railway (Holzbachtalbahn) as well as Linz (Rhine) - Flammersfeld railway (Kasbachtalbahn).