Orangeville is a town in south-central Ontario, Canada, and the seat of Dufferin County.

King's Highway 10, commonly referred to as Highway 10, is a provincially maintained highway in the Canadian province of Ontario. The highway connects the northern end of Highway 410 just north of Brampton with Owen Sound on the southern shores of Georgian Bay, passing through the towns of Orangeville and Shelburne as well as several smaller villages along the way. It historically followed the Toronto–Sydenham Road, the southern part of which later became the southern section of Hurontario Street. The section between Orangeville and Primrose was formerly part of Prince of Wales Road, which continues northwards after the highway turns west. Between Chatsworth and Owen Sound, Highway 10 is concurrent with Highway 6.