Plauer See, Lake in Ludwigslust-Parchim and Mecklenburgische Seenplatte Districts, Germany.

Plauer See is a large lake in Mecklenburg-Vorpommern that spans two districts in northeastern Germany. Forested shorelines frame the water, with several bays and inlets creating diverse landscape features.

The lake area contains remnants from Slavic settlements of earlier centuries. The nearby town of Plau became important as a hub where the Müritz-Elde waterway connects regional communities.

The lake was called Cuzhin or Kuzin in the 12th century, after the Slavic settlement and castle of Kutin or Kutsin, today's Quetzin on the western shore. Only later did it take the name of the town of Plau am See. The north-western part lies in the Naturschutzgebiet Nordufer Plauer See.

The northern shore borders a protected nature area with walking paths, while the southern shore is surrounded by forest. Several villages around the lake offer starting points for exploration and have basic facilities.

The lake was called Cuzhin or Kuzin in the 12th century, after the Slavic settlement and castle of Kutin or Kutsin, today's Quetzin on the western shore. Only later did it take the name of the town of Plau. Its water level today lies at least 1.50 m above the natural level of the 12th century, because the Elde was dammed for watermills after Plau was founded as a town in the 1220s.