Dillendorf 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 Kirchberg.
The administrative seat for the Verbandsgemeinde to which Dillendorf belongs is situated in the town of Kirchberg. The municipality is characterized by its status as a collective municipality unit within the regional district structure of Germany.