Bergen auf Rügen is the capital of the former district of Rügen in the middle of the island of Rügen in Mecklenburg-Western Pomerania, Germany. Since 1 January 2005, Bergen has moreover been the administrative seat of the Amt of Bergen auf Rügen, which with a population of over 23,000 is Mecklenburg-Vorpommern's most populous Amt.