Ontario Highway 52

King's Highway 52
Hamilton Road 52, Copetown Road, Trinity Road
Route information
Maintained by City of Hamilton
Length	10.5 km[1] (6.5 mi)
Existed	September 1, 1937–April 1, 1997
Major junctions
South end	Highway 2 / Highway 53 (Wilson Street)
Major intersections	Highway 403
North end	Highway 8 (Dundas Street) – Hamilton
Location
Country	Canada
Province	Ontario
Major cities	Hamilton
Towns	Ancaster
Villages	Rockton, Copetown
Highway system
Ontario provincial highways Current Former 400-series
Hamilton Municipal Road System
← Highway 49 → Highway 58
Former provincial highways ←  Highway 51 Highway 53  →

King's Highway 52, commonly referred to as Highway 52, was a provincially maintained highway located in the former Regional Municipality of Hamilton-Wentworth, now the City of Hamilton. The route began at a junction with former Highway 2 and Highway 53 near Ancaster and travelled north to Highway 5 and Highway 8 in Peters Corners. An older section travelled concurrently with Highway 8 northwest to Rockton, where it turned north and travelled to the Hamilton–Wellington boundary, ending inexplicably at a township road.

Highway 52 was first established in 1937 and 1938. The route remained unchanged until the formation of Hamilton-Wentworth, after which the portion north of Highway 8 was transferred to the region in 1987. The remainder between Highway 53 and Peters Corners was transferred to the region in 1998.