Warragamba Dam is a heritage-listed dam in the outer South Western Sydney suburb of Warragamba, Wollondilly Shire in New South Wales, Australia. It is a concrete gravity dam, which creates Lake Burragorang, the primary reservoir for water supply for the city of Sydney. The dam wall is located approximately 65 kilometres (40 mi) W of Sydney central business district, 4½ km SW of the town of Wallacia, and 1 km NW of the village of Warragamba.

Warragamba is a town in New South Wales, Australia, in Wollondilly Shire. Located on the eastern edge of the Blue Mountains, Warragamba is one and a half hour's drive west of Sydney. The name Warragamba comes from the aboriginal words Warra and Gamba meaning 'water running over rocks'.