The National Highway is a system of roads connecting all mainland states and territories of Australia, and is the major network of highways and motorways connecting Australia's capital cities and major regional centres.

Newell Highway is a national highway in New South Wales (NSW), Australia. It provides the major road link between southeastern Queensland and Victoria via central NSW and as such carries large amounts of freight. At 1,058 kilometres (657 mi) in length, the Newell is the longest highway in NSW, and passes through fifteen local government areas.