Waginger See is a lake in the Alpine foothills, Bavaria, Germany. Geologically, it forms one single lake with the Tachinger See, with which it is connected through a narrow strait at Tettenhausen. The surface area of the Waginger See proper is 6.61 km (2.55 sq mi); combined with the Tachinger See it is 8.97 km (3.46 sq mi). Its elevation is 441 m (1,447 ft) and its drainage area is 163.66 km (63.19 sq mi). Its primary inflows are Schinderbach, Höllenbach and Tenglinger Bach, and it is drained by the Götzinger Achen.