De National Highway is een netwerk van wegen die de belangrijkste steden van Australië met elkaar verbindt. De totale lengte bedraagt 18.391 kilometer.

Wegen die behoren tot de National Highway zijn:
Barkly Highway
Barton Highway
Bass Highway
Brand Highway
Brooker Highway
Bruce Highway
Coolgardie–Esperance Highway
Cunningham Highway
Dukes Highway
Eyre Highway
Federal Highway
Gore Highway
Goulburn Valley Highway
Great Eastern Highway
Great Northern Highway
Hume Freeway
Hume Highway
Landsborough Highway
Midland Highway
Newell Highway
New England Highway
Princes Highway
Stuart Highway
Sturt Highway
Sydney-Newcastle Freeway
Victoria Highway
Warrego Highway
Western Freeway
Western Highway

 National Highway