The Lago di Ogliastro is an artificial lake in the province of Enna and the province of Catania, Sicily, Italy. Its waters come from the river Gornalunga, which was dammed to form this lake in the early 1960s. The dam was expanded in 1972. At an elevation of 214 m, its surface area is 14.2 kmò and it has an average depth of 8.7 m.