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State highway in Queensland, Australia

The Gregory Highway is a state highway in Queensland, Australia that serves the major coal mining centres of Central Queensland. The highway was named after Augustus Gregory, an early explorer.

The highway runs southward from Quartz Blow Creek, a point west of Mount Surprise on the Gulf Developmental Road, via Charters Towers, to Springsure, over away. The northern section of is designated by the state government as the Gregory Developmental Road. The shorter southern section between Clermont and Springsure is designated the Gregory Highway. As of 2015, the first between the Gulf Developmental Road via Einasleigh to the Lynd Junction are unsealed and may be corrugated. The next section to Charters Towers has been upgraded from single lane to mostly dual laned bitumen.

The Roads of Strategic Importance initiative, last updated in March 2022, includes the following projects for the Gregory Highway.

A lead project to upgrade the Townsville to Roma corridor, including sections of the Carnarvon, Dawson and Gregory Highways and surrounding state and council roads, at an estimated cost of $125 million, commenced construction of some work projects in 2020. Planning continues for other projects.

A project to upgrade the intersection with the Capricorn Highway in at a cost of $7.9 million is scheduled for completion in mid 2023. This project was targeted for "early works" by the Queensland Government.

A project to strengthen and widen sections of pavement on the Gregory Developmental Road between Charters Towers and The Lynd at a cost of $15.3 million is planned to be completed in mid 2023. This project is targeted for "early works" by the Queensland Government. A project to upgrade a culvert near Porphyry Road, at a cost of $5,1 million, was due to be completed in late 2023.