Barkly Highway
| Barkly Highway –Queensland | |
|---|---|
| Barkly Highway in Queensland | |
| General information | |
| Type | Highway | 
| Length | 754 km (469 mi) | 
| Route number(s) | 
 | 
| Former route number | National Highway 66 (Entire route) National Highway A2 (NT/Qld Border – Cloncurry) | 
| Major junctions | |
| West end | Stuart Highway, Tennant Creek, Northern Territory | 
| 
 | |
| East end | Landsborough Highway, Cloncurry, Queensland, duplexed with Flinders Highway | 
| Location(s) | |
| Major settlements | Camooweal, Mount Isa | 
| Highway system | |
The Barkly Highway is a national highway in Queensland and the Northern Territory in Australia. It is the only sealed road between Queensland and the Northern Territory. The highway is named after the Barkly Tableland, which in turn was named by explorer William Landsborough in December 1861 after Henry Barkly, the then Governor of Victoria.