Lake Trasimeno (, ; ;
Etruscan Tarsmina), also referred to as
Trasimene or
Thrasimene in English, is a lake in
Italy, in the province of
Perugia, in the
Umbria region. The Lake is located in the south of the
Po River and to the north of the nearby
Tiber River, has a surface area of and it is the fourth for surface in Italy (it is slightly smaller than
Lake Como). Only two minor streams flow directly into the Lake and none flows out. The water level of the lake fluctuates significantly according to rainfall levels and the seasonal demands from the towns, villages and farms near the shore.