# List of islands of Australia

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:
* 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);
* K'gari, 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).
Apart from the state of Tasmania (with a population of 570,000), the largest islands by population are those connected to major urban areas on the mainland by bridge, including Bribie Island near Brisbane with a population of 18,000, and Phillip Island near Melbourne with a population of 14,000.

## New South Wales

* 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 near Budgewoi, 1.4 kilometres (0.87 mi) east of the 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, 600 kilometres (370 mi) 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, 9 kilometres (5.6 mi) 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

* Bathurst Island
* Bickerton Island
* Bruney Island
* Crocodile Islands
* Croker Island
* East Woody Island
* Elcho Island
* Goulburn Islands
* Groote Eylandt - The name is an archaic spelling of the Dutch words for "Big Island" - Australia's 4th largest island
* Howard Island
* Inglis Island
* Marchinbar 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
* Avoid Island
* Baird Island
* Barber Island
* Barrow Island
* Bayley Island
* Bedarra Island
* Beesley Island
* Bentinck Island
* Bird Islands
* Bishop Island
* 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, Cape York Peninsula
* Denham Island, Wellesley Islands
* Douglas Islet
* Duncan Islands
* Dunk Island
* Eagle Island
* Ellis Island
* Ephraim Island
* Esk Island
* Eclipse Island
* Fantome Island
* Falcon Island
* Fisher Island
* Fisherman Island
* Fitzroy Island
* Fly Island
* Frankland Islands
** Russell Island
* K'gari, 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
* Horseshoe 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
** Bedwell Group
** Beverley Group
** Broad Sound Islands
** Duke Islands
** Flat Isles
** Guardfish Cluster
** Percy Isles
* Orpheus Island
* Paddy Island
* Pains 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
** North Wellesley Islands (Mornington, Moondalbee, Lingnoonganee, Pisonia, Lingeleah, Beahgoo, Jinke, Sydney, Tulburrerr, Denham, and Andrew Islands)
** South Wellesley Islands (Allen, Horseshoe, Albinia, Bentinck, Fowler, and Sweers Islands)
** West Wellesley Islands (Forsyth, Ivis, Pains, and Bayley 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

## South Australia
### 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

* Hindmarsh Island
* Mundoo Island
* Pomanda Island
* Rabbit Island, Coorong

## Tasmania

Tasmania is a large island state off the south-east coast of mainland Australia. The main island of Tasmania (which includes 94% of the state's land area) does not have a defined name but can be referred to as the "Tasmanian mainland". There are 334 islands (or islets) within the state of Tasmania; with the main islands listed below, each having a land area greater than 100 hectares (250 acres). A full list of all 334 islands is located at the list of islands of Tasmania.
* Bruny Island
* Furneaux Island Group
** Anderson Island
** Babel Island
** Badger Island
** Big Green Island
** Cape Barren Island
** Clarke Island
** East Kangaroo Island
** Flinders Island
** Goose Island
** Great Dog Island
** Long Island
** Mount Chappell Island
* Hogan Island
* Hunter Island Group
** Hunter Island
** Robbins Island
** Three Hummock Island
* Kent Island Group
** Deal Island
** Dover Island
** Erith Island
* King Island
* Maatsuyker Islands Group
** Chicken Island
** De Witt Island
** Maatsuyker Island
* Macquarie Island
* Maria Island
** Ile du Nord
* Partridge Island
* Petrel Island Group
** Big Sandy Petrel Island
** Big Stony Petrel Island
** Little Stony Petrel Island
** South West Petrel Island
** Kangaroo Island
** Howie Island
* Picnic Island
* Robbins Island
** Walker Island (northwest)
* Rodondo Island
* Schouten Island
* Sloping Island Group
** Sloping Island
** Smooth Island (Tasmania)
* Waterhouse Island Group
** Swan Island
** Waterhouse Island

## Victoria

* 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
* Jordan's Island
* Pental Island

## Western Australia

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

## Australian territories
### Jervis Bay Territory

* Bowen Island

### Australian Capital Territory

* Kingston Island
* Pine Island
* Queen Elizabeth II Island
* Spinnaker Island
* Springbank Island

## External territories

* Ashmore and Cartier Islands
* Australian Antarctic Territory
** Achernar Island
** Masson Island
** Hawker Island
** Frazier Islands
** Giganteus Island
* Christmas Island
* Cocos (Keeling) Islands
** Horsburgh Island
** Home Island
** North Keeling Island
** West Island
* Coral Sea Islands
** Cato Island
** Elizabeth Reef
** Middleton Reef
** Willis Island
* Heard Island and McDonald Islands
* Norfolk Island
** Nepean Island
** Phillip Island