Hollnich is a municipality located in the Rhein-Hunsrück-Kreis district within the state of Rhineland-Palatinate, Germany. It is situated near the town of Kastellaun.
The village functions as an Ortsgemeinde, which is a type of local municipality belonging to a collective municipality known as a Verbandsgemeinde. Specifically, Hollnich belongs to the Verbandsgemeinde of Kastellaun, which has its administrative seat in the town of Kastellaun.