Lake Zway or Lake Ziway is one of the freshwater Rift Valley lakes of Ethiopia. It is located about 60 miles south of Addis Ababa, on the border between the Regions (or kililoch) of Oromia and of the Southern Nations, Nationalities, and Peoples; the woredas holding the lake's shoreline are Adami Tullu and Jido Kombolcha, Dugda Bora, and Ziway Dugda. The town of Ziway lies on the lake's western shore. The lake is fed primarily by two rivers, the Meki from the west and the Katar from the east, and is drained by the Bulbar which empties into Lake Abijatta.