Highway 5 is a 543 km (337 mi) north–south route in southern British Columbia, Canada. Highway 5 connects the southern Trans-Canada route with the northern Trans-Canada/Yellowhead route, providing the shortest land connection between Vancouver and Edmonton. Despite the entire route being signed as part of the Yellowhead Highway, the portion of Highway 5 south of Kamloops is also known as the Coquihalla Highway, while the northern portion is known as the Southern Yellowhead Highway. The Coquihalla section was a toll road until 2008.

The Trans-Canada Highway is a transcontinental federal–provincial highway system that travels through all ten provinces of Canada, from the Pacific Ocean on the west coast to the Atlantic Ocean on the east coast. The main route spans 7,476 km (4,645 mi) across the country, one of the longest routes of its type in the world. The highway system is recognizable by its distinctive white-on-green maple leaf route markers, although there are small variations in the markers in some provinces.