Ontario Highway 5

Ontario Highway 5

King's Highway 5, commonly referred to as Highway 5 and historically as the Dundas Highway, is a provincially maintained highway in the Canadian province of Ontario. The east–west highway travels a distance of 12.7 km (7.9 mi) between Highway 8 at Peter's Corners, north of Hamilton and Highway 6 at Clappison's Corners. Prior to several sections being downloaded to the municipalities in which they reside, Highway 5 served as bypass to Highway 2, connecting with it in both Paris and Scarborough, a distance of 114.3 km (71.0 mi).

Highway 5 followed a significant piece of the Governor's Road, one of two routes constructed under the orders of John Graves Simcoe during his short tenure as Lieutenant Governor of Upper Canada, the other being Yonge Street. The route was adopted into the provincial highway system in 1920 and numbered as Highway 5 in 1925.