Hahnstätten is a former Verbandsgemeinde ("collective municipality") in the Rhein-Lahn-Kreis, in Rhineland-Palatinate, Germany. Its seat was in Hahnstätten. On 1 July 2019, it was merged into the new Verbandsgemeinde Aar-Einrich.
The Verbandsgemeinde Hahnstätten consisted of the following Ortsgemeinden ("local municipalities"):
- Burgschwalbach
- Flacht
- Hahnstätten
- Kaltenholzhausen
- Lohrheim
- Mudershausen
- Netzbach
- Niederneisen
- Oberneisen
- Schiesheim
50°18′00″N 8°04′01″E / 50.300°N 8.067°E