Alterkülz is an Ortsgemeinde, or municipality, located within the Rhein-Hunsrück-Kreis district of Rhineland-Palatinate, Germany. It functions as part of a Verbandsgemeinde, which is a specific type of collective municipality used in the region.
The community is also designated as a tourism community (Fremdenverkehrsgemeinde), indicating its role in hosting and managing local travel and sightseeing activities.