The Arnhem Plateau is an Australian bioregion located in the Northern Territory of Australia, comprising an area of 2,306,023 hectares (5,698,310 acres)[1] of the raised and heavily dissected sandstone plateau that characterises central Arnhem Land in the Top End of the Northern Territory.

[2] The boundary of the 22,000-square-kilometre (8,500 sq mi) Important Bird Area (IBA) is largely defined by the extent of vegetation suitable for white-throated grasswrens.

Other vegetation includes open monsoonal savanna woodland and patches of rainforest, especially that dominated by the endemic tree Allosyncarpia ternata.

[3][failed verification] Identified as an important bird area by BirdLife International, the plateau supports the entire population of white-throated grasswrens, and most of the populations of white-lined honeyeaters, chestnut-quilled rock-pigeons and the local subspecies of black-banded fruit doves and helmeted friarbirds.

It also supports populations of bush stone-curlews, varied lorikeets, northern rosellas, rainbow pittas, white-gaped, yellow-tinted, bar-breasted and banded honeyeaters, silver-crowned friarbirds, masked and long-tailed finches, and sandstone shrike-thrushes.