Hahnstätten is a municipality located in the Rhein-Lahn-Kreis district within the state of Rhineland-Palatinate, Germany. It is part of the association community of Aar-Einrich and is situated on the river Aar.
The town is positioned approximately 10 km south of Limburg an der Lahn and about 35 km east of Koblenz. Notably, the conductor Bruno Weil was born in Hahnstätten in 1949.