Bennelong Point, a former island in Sydney Harbour, is a headland that, since the 1970s is the location of the Sydney Opera House in Sydney, New South Wales, Australia.

Berry Island is a locality in Wollstonecraft on the lower North Shore of Sydney, New South Wales, Australia. It was originally one of Sydney's Harbour Islands, but it is now connected to the mainland by a constructed isthmus.

The Chipping Norton Islands consist of four small lake islands that are found within Chipping Norton Lake in western Sydney, New South Wales, Australia.

Clark Island is a small island in Sydney Harbour, near the coast of New South Wales, Australia. The island is part of the Sydney Harbour National Park and lies offshore the Sydney suburb of Darling Point, in the eastern part of Sydney Harbour between the Harbour Bridge and the harbour entrance.

Cockatoo Island is a UNESCO World Heritage Site at the junction of the Parramatta and Lane Cove River in Sydney Harbour, New South Wales, Australia.

Fort Denison, part of the Sydney Harbour National Park, is a protected national park that is a heritage-listed former penal site and defensive facility occupying a small island located north-east of the Royal Botanic Gardens and approximately 1 kilometre (0.62 mi) east of the Opera House in Sydney Harbour, New South Wales, Australia. The island was formerly known in its indigenous name of Mat-te-wan-ye, and as Pinchgut Island.
Glebe Island was a major port facility in Sydney Harbour and, in association with the adjacent White Bay facility, was the primary receiving venue for imported cars and dry bulk goods in the region until 2008. It is surrounded by White, Johnstons, and Rozelle Bays. Whilst retaining its original title as an "island", it has long been infilled to the shoreline of the suburb of Rozelle and connected by the Glebe Island Bridge to Pyrmont.

Goat Island is a heritage-listed island located in Port Jackson, in Sydney, New South Wales, Australia. Located north-west of the Sydney central business district, Goat island is about 300 metres (980 ft) wide in a north/south direction and 180 metres (590 ft) long in an east/west direction; and covers an area of 5.4 hectares. Goat Island lies off the shores of the Sydney suburbs of Balmain and Millers Point, at the junction of Darling Harbour with the main channel of Sydney Harbour.
Rodd Island is a 6,700-square-metre (0.67 ha) island on the Parramatta River in Sydney, Australia. It lies in the centre of Iron Cove, between the suburbs of Drummoyne, Russell Lea, Rodd Point, Haberfield and Leichhardt. It is located west of the Sydney Harbour upstream and the Harbour Bridge. Today the island is uninhabited, and forms part of the Sydney Harbour National Park. The island has had various other names over its history: Rabbit Island, Rhode Island, Snake Island and Jack Island.

Shark Island is an island in Sydney Harbour, in New South Wales, Australia. The island is 1.5 hectares in area, measuring some 250 metres by 100 metres, and lies off the Sydney suburbs of Point Piper, Rose Bay and Vaucluse, in the eastern section of the harbour between the Harbour Bridge and the harbour entrance. The island was known by the local Aboriginal people as Boambilly, and the current name comes from its shape, which is claimed to resemble a shark.

Snapper Island is a 1.65 hectare island in Sydney Harbour, Australia. It lies in the main channel of the western section of the harbour, upstream of the Sydney Harbour Bridge, adjacent to the Sydney suburb of Drummoyne.

Spectacle Island is an island in the Parramatta River and Sydney Harbour, in Sydney, Australia. It lies in the main channel of the western section of the harbour, upstream of the Harbour Bridge, adjacent to the Sydney suburb of Drummoyne.

Wedding Cake Island is an island located approximately one kilometre (0.6 mi) east of Coogee Beach, Sydney, Australia in the Tasman Sea. The island protects the beach from most swells. The island is also known as Lemo's Island.