Burnhamthorpe Road is a major arterial road in the cities of Toronto and Mississauga, Ontario; beginning at Dundas Street, near Islington Avenue, running west and becoming a rural road in the Town of Oakville, where it terminates at Tremaine Road, where it changes name.

Dundas Street is a major historic arterial road in Ontario, Canada. The road connects the city of Toronto with its western suburbs and several cities in southwestern Ontario. Three provincial highways—2, 5, and 99—followed long sections of its course, although these highway segments have since been downloaded to the municipalities they passed through. Originally intended as a military route to connect the shipping port of York to the envisioned future capital of London, Ontario, the street today connects Toronto landmarks such as Yonge–Dundas Square and the city's principal Chinatown to rural villages and the regional centres of Hamilton and London.