This is a list of selected Australian islands grouped by State or Territory.
Australia has 8,222 islands within its maritime borders.
Largest islands
The islands larger than 1,000 square kilometres (390 sq mi) are:
Mainland Tasmania (Tas) 64,519 square kilometres (24,911 sq mi);
Melville Island, Northern Territory (NT), 5,786 square kilometres (2,234 sq mi);
Kangaroo Island, South Australia (SA), 4,416 square kilometres (1,705 sq mi);
Groote Eylandt (NT), 2,285 square kilometres (882 sq mi);
Bathurst Island (NT), 1,693 square kilometres (654 sq mi);
Fraser Island, Queensland (Qld), 1,653 square kilometres (638 sq mi);
Flinders Island (Tas), 1,359 square kilometres (525 sq mi);
King Island (Tas), 1,091 square kilometres (421 sq mi); and
Mornington Island (Qld), 1,002 square kilometres (387 sq mi).
Bare Island, near the north headland of Botany Bay
Bird Island, located near Budgewoi, 1.4 kilometres (0.87 mi) east of the Central Coast
Boondelbah Island, at the mouth of Port Stephens
Broughton Island (New South Wales), located north of Port Stephens
Cabbage Tree Island, at the mouth of Port Stephens
Chatsworth Island, in the Clarence River
Clark Island, in Sydney Harbour
Cockatoo Island, in Sydney Harbour, originally used as a prison and later developed as a shipyard
Cook Island, located near Tweed Heads
Dangar Island, a small forested island in the Hawkesbury River
Dumaresq Island, a small island in the Manning River downstream of Taree
Darling Island, a former island subsequently bridged by land, in Sydney Harbour
Esk Island, in the north arm of the Clarence River
Fatima Island, a tidal island of the COok's RIver
Fort Denison, also known as Pinchgut
Five Islands Nature Reserve, a group of islands off the coast near Wollongong
Garden Island (no longer an island)
Glebe Island (no longer an island)
Goat Island, a rocky island in Sydney Harbour
Goodwood Island
Green Island, a small island north of Smoky Cape
Harwood Island, in the Clarence River
Lion Island, at the entrance to the Hawkesbury River
Long Island, in the Hawkesbury River
Lord Howe Island, a small island in the Tasman Sea, 600 kilometres (370 mi) east of the Australian mainland
Ball's Pyramid
Admiralty Group
Milson Island, in the Hawkesbury River
Montague Island, 9 kilometres (5.6 mi) east of Narooma on the south coast
Muttonbird Island, off Coffs Harbour
Oxley Island
Pinchgut - see Fort Denison, a former penal site and defensive facility in Sydney Harbour
Pulbah Island, the largest island in Lake Macquarie
Rodd Island, a small island in the Parramatta River
Scotland Island, in the north of Sydney
Shark Island, in Sydney Harbour
Snapper Island, in Sydney Harbour
Spectacle Island, in the Hawkesbury River
Spectacle Island, in Sydney Harbour
Solitary Islands
Wasp Island, the only island in Durras Inlet near Batemans Bay
Wedding Cake Island, a small island of the coast of Coogee
Windang Island, a small island at the entrance to Lake Illawarra
Woodford Island, in the Clarence River on the far north coast
Bathurst Island
Bickerton Island
Crocodile Islands
Croker Island
Elcho Island
Goulburn Islands
Groote Eylandt - Dutch for "Big Island" - Australia's 4th largest island
Howard Island
Martjanba Island
Melville Island, the second largest island in Australia
Quail Island
Sir Edward Pellew Group
Tiwi Islands
Vanderlin Island
Wessel Islands
Queensland
Acheron Island
Agnes Island
Albino Rock
Aplin Islet
Arnold Islets
Baird Island
Barber Island
Barrow Island
Bedarra Island
Beesley Island
Bird Islands
Bishop Island (no longer an island - Port of Brisbane wharves construction in the mouth of the Brisbane River extended over it)
Bootie Island
Bountiful Islands
Bowden Island
Boyne Island
Brampton Island
Bribie Island
Brisk Island
Brook Islands, three islands: North, Tween and Middle.
Bourke Isles
Bushy Island
Bushy Islet
Cholmondeley Islet
Clack Island
Clerke Island
Coconut Island
Coochiemudlo Island
Crab Island
Cordelia Rocks
Coquet Island
Curacoa Island
Denham Island
Douglas Islet
Duncan Islands
Dunk Island
Eagle Island
Ellis Island
Ephraim Island
Esk Island
Eclipse Island
Fantome Island
Falcon Island
Fisher Island
Fisherman Island (no longer an island - Port of Brisbane wharves construction in the mouth of the Brisbane River extended over it)
Fitzroy Island
Fly Island
Frankland Islands
Russell Island
Fraser Island, the largest sand island in the world
Goold Island
Gore Island
Great Keppel Island
Great Palm Island
Green Island
Haggerston Island
Hales Island
Hannibal Islands
Harvey Island
Heron Island
High Island
Hinchinbrook Island
Houghton Island
Hudson Island
Jessie Island
Kangaroo Island
Kent Island
King Island
Kumboola Island
Lady Elliot Island
Lady Musgrave Island
Leggatt Island
Lindquist Island
Lizard Island
Lloyd Island
Low Island
Low Wooded Island
Mabel Island
Makepeace Island
Magnetic Island
Milman Islet
Moreton Island
Mornington Island
Morris Island
Mudjimba Island
Murdock Island
Nigger Head
Newton Island
Nob Island
Noble Island
Normanby Island
North Direction Island
North Stradbroke Island
Northumberland Islands
Orpheus Island
Paddy Island
Palfrey Island
Peel Island
Pelorus Island
Pentecost Island
Percy Island
Perry Island
Pigeon Island
Pincushion Island
Pipon Island
Prince of Wales Island
Pumpkin Island
Raine Island
Restoration Island
Rocky Island
Rocky Point Island
Rodney Island
Round Island
St Helena Island
Shaw Island
Sherrard Island
Sir Charles Hardy Islands
The Sisters
Sisters Islands
Snapper Island
South Direction Island
South Stradbroke Island
Southern Moreton Bay Islands
Russell Island
Macleay Island
Perulpa Island (Connected to Macleay Island by causeway)
Lamb Island
Karragarra Island
Saibai Island, in the Torres Strait
Stephens Island
Struck Island
Sunday Island
Sunter Island
Sweers Island
Talbot Islands
Tern Island
Thomson Islet
Thorpe Island
Three Islands
The Three Sisters
Sue Islet
Torres Strait Islands
Trochus Island
Turtle Group
Watson Island
Wellesley Islands
Wheeler Island
Whitsunday Islands
Daydream Island
Dent Island
Hamilton Island
Hayman Island
Hook Island
Keswick Island
Lindeman Island
Long Island
South Molle Island
Whitsunday Island
Wilson Island
Woody Island
Ocean islands
Althorpe Islands
Haystack Island
Seal Island (Investigator Strait)
Beatrice Islets
Bicker Isles
Bird Islands
Boston Island
Busby Islet
Casuarina Islets
Chinamans Hat Island
Curlew Island
Douglas Rock
Entrance Island
Gambier Islands
Garden Island
Goose Island
Granite Island
Grantham Island
Greenly Island
Grindal Island
Investigator Group
Flinders Island
Pearson Isles
Dorothee Island
Pearson Island
Veteran Isles
Topgallant Islands
Waldegrave Islands
Ward Islands
Jones Island
Kangaroo Island, Australia's third-largest island
Liguanea Island
Lipson Island
Louth Island
Neptune Islands
Nicolas Baudin Island
Nobby Islet
Nuyts Archipelago
St Francis Island
St Peter Island
Smooth Island
Middle Island
Owen Island
Paisley Islet
Pelorus Islet
Pullen Island
Rabbit Island, Coffin Bay
Rabbit Island, Louth Bay
Rabbit Islet, Pelican Lagoon
Royston Island
St Francis Island
St Peter Island
Shag Island
Sir Joseph Banks Group
Blyth Island
Boucaut Island
Dalby Island
Dangerous Reef
Duffield Island
English Island
Hareby Island
Kirkby Island
Langton Island
Lusby Island
Marum Island
Partney Island
Reevesby Island
Roxby Island
Seal Rock
Sibsey Island
Spilsby Island
Stickney Island
Winceby Island
Seal Island (Encounter Bay)
South Island
Taylor Island
Thistle Island
Torrens Island
Troubridge Island
Tumby Island
Unnamed island, Baird Bay
Wardang Island
Wedge Island
Weeroona Island
West Island
Wright Island
Murray River islands
List of islands within the Murray River in South Australia
Hindmarsh Island
Pomanda Island
Rabbit Island, Coorong
Tasmania is a large island state off the south coast. The main island (which includes 94% of the state's land area) does not have a defined name but is often referred to as the "Tasmanian mainland".
Albatross Island
Boomer Island
Bruny Island
Breaksea Islands
Cape Barren Island
Clarke Island
Eddystone Island
Flinders Island
Goat Island
Hogan Island
Hunter Island Group
Hunter Island
Robbins Island
Three Hummock Island
Walker Island
Kathleen Island
Kent Group, Bass Strait
King Island
Louisa Island
Maatsuyker Islands
Chicken Island
De Witt Island
Flat Top Island
Flat Witch Island
Hen Island
Ile du Golfe
Louisa Island
Maatsuyker Island
Round Top Island
Walker Island
Macquarie Island
Maria Island
Mewstone
Pedra Branca
Penguin Island
Robbins Island
Rodondo Island
Sarah Island
Schouten Island
Sloping Island Group
Sloping Island
Barren Island
Fulham Island
Hog Island
King George Island
Smooth Island
Spectacle Island
Little Spectacle Island
Visscher Island
Woody Island
Swainson Island Group
Big Caroline Rock
Hay Island
Lourah Island
Shanks Islands
Swainson Island
The Lanterns
Waterhouse Island
Wedge Island
Anser Island
Barrallier Island
Bennison Island
Chinaman Island
Churchill Island
Corner Island
Duck Island
Elizabeth Island
French Island
Gabo Island
Griffiths Island
Joe Island
Kanowna Island
Lady Julia Percy Island
Mud Islands
Norman Island
Phillip Island
Raymond Island
Rotamah Island
Sandstone Island
Shellback Island
Snake Island
Sunday Island
Swan Island
Tullaberga Island
Mangrove Islet
River islands
Beveridge Island
Coode Island
Gunbower Island
Herring Island
Jordans Island
Pental Island
Over 1,000 islands have been gazetted – only the island groups and major islands are listed.
Ashmore Reef
Barrow Island
Bonaparte Archipelago
Buccaneer Archipelago
Cockatoo Island
Cape Leeuwin Islands
Carnac Island
Dampier Archipelago
Dirk Hartog Island
Garden Island
Houtman Abrolhos
Easter Group
Pelsaert Group
Wallabi Group
Lacepede Islands
Lowendal Islands
Mary Anne Group
Montebello Islands
Recherché Archipelago
Rottnest Island
Rowley Shoals
Scott and Seringapatam Reefs
Shark Bay islands
Wedge Island
Bowen Island
Aspen Island
Pine Island
Spinnaker Island
Springbank Island
