This is a list of selected Australian islands grouped by state or territory.
Australia has 8,222 islands within its maritime borders. The largest islands are: Tasmania 68,332 km²; Melville Island 5,786 km²; Kangaroo Island, 4,416 km²; Groote Eylandt, 2,285 km²; Bathurst Island, 1,693km²; Fraser Island 1,653km²; Flinders Island, 1,359 km²; King Island 1,091 km²; and Mornington Island, 1 002 km².
Lizard Island is a national park on the Great Barrier Reef in Queensland (Australia), 1624 km northwest of Brisbane and part of the Lizard Island Group that also includes Palfrey Island.