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) to the southwest of Sydney central business district, near the town of Wallacia. The property is owned by WaterNSW, an agency of the Government of New South Wales. It was added to the New South Wales State Heritage Register on 18 November 1999.