The Sydney Harbour Foreshore Authority is a statutory authority set up by the NSW government of Australia in order to maintain the Sydney Harbour foreshore area. It maintains 4 km² of prime waterfront real estate in the foreshore area including Darling Harbour and The Rocks.

The Sydney Harbour Foreshore Authority also owns and maintains other land in Sydney, including the Rozelle Marshalling Yards and White Bay Power Station. Some of this land is not waterfront land, and it is quite a quirk of SHFA's history that it is the owner of this land.

The Authority is also place manager for a number of culturally significant sites in Sydney, including Luna Park, the Sydney Conservatorium of Music and the Circular Quay precinct. In previous years, land ownership included the suburbs of Pyrmont and Ultimo, but these have since been redeveloped and sold to the private sector. Proceeds from these land sales were returned to the NSW Treasury.

The Authority is administered by a seven-member Board, which reports to the NSW Minister for Planning.