The Sydney Harbour National Park is an Australian national park comprising parts of Port Jackson, Sydney and its foreshores and various islands. The 392-hectare national park lies in New South Wales and was created progressively, from 1975.
The national park protects the landforms of Bradleys Head, Clark Island, Dobroyd Head, Fort Denison, Georges Head, Goat Island, Middle Head, Nielsen Park, Rodd Island, Shark Island, Sydney Heads including the Quarantine Station at North Head and The Gap bluff at South Head. The national park also protects the waterway between North Head and Dobroyd Head, defined as the North Sydney Harbour Aquatic Reserve. Parts of the national park lie outside the harbour and face the Tasman Sea.
The national park is managed by the NSW National Parks and Wildlife Service.