Bergen is a town in the north of Celle district on the Lüneburg Heath, in Lower Saxony, Germany. Administratively it acts as a municipal borough divided into 12 subordinate parishes based on the town and its surrounding villages: Becklingen, Belsen, Bergen, Bleckmar, Diesten, Dohnsen, Eversen, Hagen, Hassel, Offen, Sülze and Wardböhmen. Bergen-Belsen concentration camp was located in the area of Belsen.