, 1996 , the largest island in
Sydney Harbour, 2008 , 2006 •
Amherst Island, in Lake Mummuga •
Ash Island, in the lower Hunter River •
Bare Island, near the north headland of Botany Bay •
Belowla Island, off Kioloa Beach •
Bird Island, located off
Budgewoi,
Central Coast •
Boondelbah Island, at the mouth of Port Stephens •
Brisbane Water: •
Pelican Island •
Riley's Island •
St Hubert's Island (largely artificial, created by raising an inter-tidal wetland above high water level) •
Broughton Island, located north of
Port Stephens •
Broulee Island, located off the coast at
Broulee •
Brush Island, off Bawley Point •
Cabbage Tree Island, at the mouth of Port Stephens •
Cabbage Tree Island, in the Richmond River •
Carter's Island, in Botany Bay near the mouth of George's River •
Clarence River estuary: •
Ashby Island •
Chatsworth Island •
Freeburn Island •
Goodwood Island •
Harwood Island •
Micalo Island •
Palmers Island •
Thorny Island •
Warregah Island •
Yargai Island •
Clark Island, in Sydney Harbour •
Cockatoo Island, in Sydney Harbour, originally used as a prison and later developed as a shipyard •
Comerong Island, in the Shoalhaven River estuary •
Coocumbac Island, in the Manning River at Taree •
Cook Island, located near
Tweed Heads •
Crampton Island, off the mouth of Lake Tabourie •
Dalhunty Island, in Wilson River at Telegraph Point •
Dangar Island, a small forested island in the Hawkesbury River •
Darling Island, a former island subsequently bridged by land, part of
Pyrmont, in Sydney Harbour •
Elizabeth Island, in the Clarence River near Grafton •
Esk Island, in the north arm of the Clarence River •
Fatima Island, a tidal island of the Cook's River •
Fattorini Island, in the Macleay River near Smithtown •
Fort Denison, also known as
Pinchgut •
Five Islands Nature Reserve, a group of islands off the coast of Wollongong: •
Bass Island •
Big Island •
Martin Island •
Red Island •
Tom Thumb Island •
Garden Island (no longer an island) •
Glebe Island (no longer an island) •
Goat Island, a rocky island in Sydney Harbour •
Green Island, a small island north of Smoky Cape •
Green Island, off the mouth of Lake Conjola •
Hexham Island, in the lower Hunter River •
Honeysuckle Island, in Wallaga Lake •
Horse Island, in Tuross Lake •
Joass Island, located in
Little Swan Bay,
Port Stephens •
Kurrajong Island, in the Shoalhaven estuary •
Lake Illawarra: •
Berageree Island •
Bevan's Island •
Gooseberry Island •
Hooka Island •
Picnic Island •
Cudgeree Island •
Kooragang Island, in the lower Hunter River •
Lake Eucumbene: •
Grace Lea Island •
Hallstrom Island •
Heron Island •
Teal Island •
Lion Island, in Broken Bay •
Little Rawdon Island, in Hastings River downstream of Wauchope •
Long Island, in the Hawkesbury River •
Lord Howe Island, a small oceanic island in the Tasman Sea, east of the Australian mainland; it is the most remote island of Australia to not fall under external territory status •
Ball's Pyramid •
Admiralty Group •
Manning River estuary: • Cabbage Tree Island •
Dumaresq Island •
Mitchell's Island •
Oxley Island •
Merriman Island, in Wallaga Lake •
Milson Island, in the Hawkesbury River •
Montague Island, east of Narooma on the south coast •
Moon Island, 1 km off Swansea Heads •
Muttonbird Island, off
Coffs Harbour •
Newry Island, in the Kalang River near Urunga •
Numbaa Island, in the Shoalhaven River •
Payne's Island, in Wallaga Lake •
Peat Island, in the Hawkesbury River •
Pig Island, in the Shoalhaven River •
Pimlico Island, in Richmond River near Wardell •
Pinchgut - see
Fort Denison, a former penal site and defensive facility in Sydney Harbour •
Pulbah Island, the largest island in Lake Macquarie •
Rawdon Island, in Hastings River downstream of Wauchope •
Reedy Island, in Tuross Lake •
Regatta Island, in Wallis Lake •
Rodd Island, a small island in Iron Cove, an arm of Port Jackson (Sydney Harbour) •
Sanctuary Island, in Narrabeen Lagoon •
Scotland Island, in Pittwater •
Shark Island, in Sydney Harbour •
Snapper Island, in Sydney Harbour •
Spectacle Island, in the Hawkesbury River •
Spectacle Island, in Sydney Harbour •
Solitary Islands •
North Solitary Island •
South Solitary Island •
Southwest Solitary Island •
Mid Solitary Island •
Split Solitary Island •
Stott's Island, in Tweed River at Tumbuulgum •
Stuart's Island, in Nambucca River at Bellwood •
Sultan's Island off coast 4 km north of Eden •
Susan Island, in Clarence River at Grafton •
Teribah Island, at The Entrance, Tuggerah Lake •
Tollgate Islands (2), in Bateman's Bay •
Ukerebagh Island, in Tweed River at South Tweed Heads •
Wallis Island, in Wallis Lake •
Wasp Island, the only island in Durras Inlet near
Batemans Bay •
Wedding Cake Island, a small island off the coast of Coogee •
Windang Island, a small island at the entrance to Lake Illawarra •
Woodford Island, in the Clarence River immediately upstream of Maclean •
Yellow Rock Island, at junction of Bellinger and Kalang Rivers near Urunga ==Northern Territory==