Great Eastern Highway, Western Australia is a major road linking Perth with Kalgoorlie. It is a key route for vehicles accessing eastern wheatbelt and the eastern goldfields. It also forms the westernmost 595 kilometres (370 mi) of the main road transportation link between Perth and the east coast of Australia.
The road is mostly a federally funded national highway due to its national strategic importance. It is signed as National Highway 94 except for a 9 km stretch between the Great Eastern Highway Bypass and Roe Highway, and the 40 km section between Coolgardie and Kalgoorlie. It is also signed as Highway 1 between The Causeway and Morrison Road, and State Route 51 between Johnson Street, Guildford, and Roe Highway.