Wahlenau is an Ortsgemeinde, or municipality, located in the Rhein-Hunsrück-Kreis district within the state of Rhineland-Palatinate, Germany. It functions as a member of a Verbandsgemeinde, which is a specific type of collective municipality.
The village belongs to the Verbandsgemeinde of Kirchberg. The administrative seat for this collective municipality is situated in the town of Kirchberg.