Schmachter See is a lake near Binz on the German Baltic Sea island of Rügen. It lies within the county of Vorpommern-Rügen in the state of Mecklenburg-Vorpommern. It has an elevation of 1.1 metres above sea level and its surface area is 1.18 km². It is part of the Schmachter See and Fangerien Nature Reserve.
The lake has its origins in the Ice Age. At the end of the glacial period there was an ice front here. Today the lake has an area of about 118 hectares.
Coordinates 54°23'49.91" N 13°35'39.148" E