List of highways in Western Australia

The standard of highways range from two-lane roads, common in rural areas, to controlled access, grade separated freeways in Perth.

[1] As the outback covers most of Western Australia, tracks provide vital links to remote communities and settlements.

These tracks are unsealed, remote, and in many cases pass through restricted areas such as Aboriginal lands and Indigenous Protected Areas, which require transit permits.

[4][5][6][7] Highway 1 is a route that circumnavigates Australia, joining all mainland state capitals, via roads numbered 1, M1, A1, or B1, as some states use an alphanumeric route numbering system.

However, the sections in the north-east and south-east of the state that are concurrent with the National Highway routes from Perth to Adelaide and from Perth to Darwin are designated as National Highway 1.