Siesbach is an Ortsgemeinde, or municipality, located in the Birkenfeld district within the state of Rhineland-Palatinate, Germany. It functions as a member of the Verbandsgemeinde of Birkenfeld, which is a type of collective municipality.
The administrative seat for the Verbandsgemeinde to which Siesbach belongs is situated in the town of Birkenfeld. The municipality serves as a local administrative unit within this regional structure.