Borgwallsee is a lake in Mecklenburg-Vorpommern, Germany, at an elevation of 13.2 m. Its surface area is 3.89 km2. The average depth is 2.4 m. Apart from the woods on the southern shore, the area surrounding the lake is used widely for agriculture.
Borgwallsee is a drinking water reservoir serving the city of Stralsund. As such, water activities are restricted and bathing is allowed only in designated areas.
Coordinates 54°16'21.219" N 13°0'24.612" E