Wildsee may refer to the following lakes:
Austria Wildsee (Seefeld), a lake near Seefeld in the Northern Limestone Alps, Tyrol Wildsee (Fieberbrunn), a lake in the Kitzbühel Alps near Fieberbrunn, Tyrol
Germany Wildsee (Kaltenbronn), a lake near Gernsbach and Bad Wildbad in the Northern Black Forest, Baden-Württemberg Wildsee (Ruhestein), a lake near Baiersbronn in the Northern Black Forest, Baden-Württemberg
Italy Pragser Wildsee, a lake in the Prags Dolomites in South Tyrol
Switzerland Wildsee (Pizol), a lake in the Pizol area in the canton of St. Gallen
See also Wildensee (disambiguation)