The Müritz (from slavic "little sea") is a lake in Mecklenburg-Vorpommern, northern Germany. Its area is 117 km², which makes it the second largest lake of Germany (after Lake Constance). Its maximum depth is 31 metres. It is fed and drained by the river Elde. Part of the Müritz and adjacent forests and wetlands are protected by the Müritz National Park. The Müritz district was named after the lake.