The Dusky Antechinus has a wide distribution in south‑eastern Australia. It occurs along the coast and ranges from south‑eastern Queensland through eastern New South Wales and most of Victoria to south‑eastern South Australia and Tasmania.

Several species of antechinus occur in Queensland, mostly along the eastern ranges and adjoining coastal areas. Species such as the Brown Antechinus and Yellow-footed Antechinus extend south into New South Wales and Victoria, while others like the Subtropical Antechinus are restricted to south‑east Queensland and far north‑eastern New South Wales.

The silver-headed antechinus is known only from Kroombit Tops National Park and nearby state forests in south‑east Queensland and from two sites in far northern New South Wales. It inhabits high‑altitude wet forest on the eastern escarpment.

Under “Distribution” the Australian Museum states that the Brown Antechinus occurs in “Northern and eastern Australia.” It notes that the distribution map on the page “shows species occurrence observations from data recorded in the Atlas of Living Australia,” and the map shows occurrences along the east coast including parts of Queensland, New South Wales and Victoria.

Antechinus swainsonii is found in south-eastern Australia, ranging from southern Queensland to eastern South Australia, throughout Victoria and New South Wales, and on the island of Tasmania. The species is most commonly found in moist sclerophyll forests and rainforests on the Australian mainland and Tasmania.

Antechinuses are insectivorous marsupials found mainly on Australia’s east coast. The mountain ranges of eastern Queensland have the greatest diversity of antechinus species, with nine found between the New South Wales border and Cape York. Since 2012, three new species of antechinus have been discovered in Queensland.

The Swamp Antechinus (Antechinus minimus) is a small carnivorous marsupial occurring in south-east Australia. On mainland Australia, it is found near coastal areas from Robe, South Australia in the west of its range to Corner Inlet in Victoria. In Victoria there are three main concentrations, including the Bass Coast and Wilsons Promontory area.

Antechinus mysticus sp. nov. occurs in coastal Australia, ranging from just north of the Queensland and New South Wales border to the Kroombit Tops area in southeast Queensland. This places at least one antechinus species in eastern Queensland and near the Queensland-New South Wales boundary.

The dasyurid marsupial genus Antechinus is represented in Australia by ten species. In eastern Australia, Antechinus flavipes occurs from north Queensland through New South Wales and Victoria and south to Adelaide, showing that the genus includes species distributed across eastern and southeastern Australia.

The genus overview page for *Antechinus* in the Atlas of Living Australia lists the Australian Faunal Directory classification and links to individual species profiles, each with occurrence records maps. While the genus‑level page itself shows no aggregated records, it serves as an index to the various Antechinus species, many of which have mapped distributions in eastern and south‑eastern Australia including Queensland, New South Wales and Victoria.

Brown antechinuses are found in southeastern Australia including southeastern Queensland, eastern New South Wales, most of Victoria, southeastern South Australia, and Tasmania. Their distribution closely follows the Great Dividing Range and associated coastal forests.

Yellow-footed antechinus are found in eastern and south-western Australia. In the east, their range extends from north-eastern Queensland through eastern New South Wales and Victoria to south-eastern South Australia. They inhabit open forest, woodland, heath and dry sclerophyll forest.

Antechinuses found in mainland Australia, Tasmania and New Guinea are famous for their sexual behavior. The article also notes that the silver-headed antechinus is known only from southeast Queensland and the black-tailed dusky antechinus from sites near the Queensland and New South Wales border.

The genus Antechinus includes multiple species whose ranges are concentrated in eastern and southeastern Australia. Several species occur in Queensland, New South Wales, and Victoria, while others extend into South Australia, Tasmania, or northern Australia.

Antechinus is a genus of small dasyurid marsupial endemic to Australia. The majority of Antechinus species are located on the eastern coast of Australia along the Great Dividing Range, with species also present in other parts of Australia.