The Lago di Santa Croce is a semi-natural lake in the province of Belluno, Veneto, northern Italy, located between Farra d'Alpago and Santa Croce.
The lake is located at 386 m ASL and currently has an area of 7.2 km², with an average depth of 33m.
It was originally naturally a smaller lake, but was expanded with a dam during the 1930s.
Outlets of the lake include the Piave.
The area is quite a windy location and as such is a popular sailing, watersports and kitesurfing location.