Roads with highway names in Australia are roads that are usually, but not necessarily, classified as a highway^{[lower-alpha 1]} by a state or territory road authority. There are also many roads classified as a highway, but without a highway name. For example, Great Southern Highway is classified as a main road, not as a highway,^[1][2] or Hereward Highway in the Sydney suburb of Blacktown which is a two lane suburban street with the name Highway, while the King Georges Road is classified as a highway,^[3] but does not have the word "Highway" in its name. There are a number of freeways in Australia, or freeway-standard roads, which may or may not be classified as highways, and may or may not be named as highways.

The accessibility of this article is in question. The specific issue is: Images of highway numbers like "A2" and "M420" are not searchable with "Find in page..." and do not work for people using screen readers. Relevant discussion may be found on the talk page. (January 2024)

This list contains all roads that satisfy one of the following criteria:

• Are named as a highway, motorway or freeway
• Are classified as a highway, but without a highway, motorway or freeway name