Dommershausen is an Ortsgemeinde, or municipality, located in the Rhein-Hunsrück-Kreis district within the state of Rhineland-Palatinate, Germany. It functions as a constituent part of the Verbandsgemeinde of Kastellaun.
The administrative seat for the Verbandsgemeinde is situated in the town of Kastellaun. Dommershausen is categorized as a collective municipality belonging to this specific local government structure.