The Roe Plains is a plain in the southeastern corner of Western Australia.
The Plains are bounded on the north by the Hampton Tableland escarpment rising to the Nullarbor Plain and to the south by the Great Australian Bight.
The Eyre Highway traverses the Roe Plains between the Eucla Pass on the east and the Madura Pass on the west.
The only current human settlements on the Roe Plains are Madura and Mundrabilla roadhouses and the nearby stations — Madura Station and Mundrabilla Station. The Roe Plains extend further west than Madura Pass to the Nuytsland Nature Reserve, roughly south of Cocklebiddy on the Eyre Highway and Nullarbor Plain.
Similar to the caves of the Hampton Plains, Roe Plains have a resource of fossil deposits
The plains are considered geologically to be late Neogene
The Roe Plains are predominantly marine dunes on a coastal plain.