Gackenbach is an Ortsgemeinde, or municipality, located in the Westerwaldkreis district within the state of Rhineland-Palatinate, Germany. It functions as a local administrative unit belonging to a larger collective municipality.
The village is part of the Verbandsgemeinde of Montabaur. This structure identifies Gackenbach as a constituent member of a group of municipalities governed under a shared administrative framework in the region.