Ontario Highway 502

Highway 502
Route information
Maintained by the Ministry of Transportation of Ontario
Length	151.1 km[1] (93.9 mi)
History	1956–1973 (near Napanee) 1980–present[2] (Fort Frances–Dryden)
Major junctions
South end	Highway 11 – Fort Frances
North end	Highway 594 – Dryden
Location
Country	Canada
Province	Ontario
Highway system
Ontario provincial highways Current Former 400-series
← Queen Elizabeth Way → Highway 510
Former provincial highways ←  Highway 501 Highway 503  →

Secondary Highway 502, commonly referred to as Highway 502, is a provincially maintained secondary highway in the Canadian province of Ontario. The highway is 151.7 kilometres (94.3 mi) long, connecting Highway 11 east of Fort Frances with Highway 17 in Dryden, via Highway 594. It also carries the Great River Road designation.

The route was constructed throughout the mid- to late 1970s as a new connection between Highway 11 and Highway 17, known as the Manitou Road. It opened in 1980. Another Highway 502 existed between 1956 and 1973, a short alternative route to Highway 2 near Napanee.