Mudenbach is an Ortsgemeinde – a community belonging to a Verbandsgemeinde – in the Westerwaldkreis in Rhineland-Palatinate, Germany.

The community lies in the northern Westerwald on the river Wied.

It belongs to the Verbandsgemeinde of Hachenburg, a kind of collective municipality.

The municipal council is made up of 13 council members, including the extraofficial mayor (Bürgermeister), who were elected in a majority vote in a municipal election on 13 June 2004.

The Autobahn interchanges Mogendorf and Dierdorf on the A 3 (Cologne–Frankfurt) can be reached by Bundesstraßen 8 and 413.