Mährens is an uninhabited German island in the Baltic Sea. It lies between the islands of Rügen and Ummanz off the coast of Mecklenburg-Western Pomerania. It is around 150 × 100 metres in size and reaches just 3 metres above sea level. Together with its two larger neighbours, Liebes and Urkevitz, as well as the smaller Wührens, the island lies within the Western Pomerania Lagoon Area National Park and, as a bird reserve, access to the island is not permitted to unauthorised persons.