This is a list of provincial highways in Ontario, Canada. Many of the highways were sold by the Tories, to the counties and municipalities through which the highways pass. Ontario provincial highways are also known as "King's Highways", a name opposed by some people.

List of highways

There are no highways having the numbers 1, 13,

Secondary Roads

  • Ontario provincial no. 518

Defunct Highways

  • The King's Highway 2, Windsor to the Ontario-Quebec boundary, now Lakeshore Blvd., Kingston Road, Toronto Road, and Loyalist Road.
  • The King's Highway 2A (Windsor), Highway 2 Junction in Windsor to Highway 2 Junction in Tilbury. Existed from 1929 to 1938
  • The King's Highway 2A (Toronto), Highway 2 Junction in Scarborough to Highway 401 Junction in Scarborough. Existed from 1947 to 1998
  • The King's Highway 2Alt (London), Highways 2&4 Junction in London to Highways 2&126 Junction in London. Existed from 1956 to 1968
  • The King's Highway 2Alt (Chatham), Highway 2 Junction in Chatham to Highway 2 Junction in Chatham. Existed from 1957 to 1961
  • The King's Highway 2Alt (Cornwall), Highway 2 Junction in Cornwall to Highway 2 Junction in Cornwall. Existed from 1965 to 1967
  • The King's Highway 2B, Highway 2 Junction in Chatham to Highway 2 Junction in Chatham. Existed from 1961 to 1970
  • The King's Highway 2S, Highway 2 Junction in Gananoque to Highway 401 Junction west of Brockville. Existed from 1939 to 1952 & 1967 to 1970
  • The King's Highway 3 Port Colborne and probably west of ON-40
  • The King's Highway 3A (Niagara), Highway 3 junction at Chambers Corners to Highway 58 junction in Welland. Existed from 1927 to 1970
  • The King's Highway 3A (Windsor), Windsor-Detroit Tunnel to Highway 3 junction at Oliver. Existed from 1929 to 1935
  • The King's Highway 3B (Maidstone), Highway 3 junction in Maidstone to Highway 2A junction in Maidstone. Existed from 1931to 1938
  • The King's Highway 3B (Windsor), Windsor-Detroit Tunnel to Highway 401 junction at Windsor. Existed from 1935 to 1998
  • The King's Highway 3B (Tilsonburg), Highway 3 junction west of Tillsonburg to Highway 3 junction in Tillsonburg. Existed from 1973 to 1977
  • The King's Highway 3C, Ridgeway/Crystal Beach to Highway 3 junction in Fort Erie. Existed from 1934 to 1970
  • The King's Highway 5, now Dundas Street, Bloor Street and Danforth Avenue.
  • The King's Highway 11A, Gardiner Expressway/Lakeshore Boulevard to Macdonald-Cartier Freeway (ON-401) now, York Street then University Avenue, then Avenue Road, and Oriole Parkway
  • The King's Highway 11B (Cobalt-New Liskeard)
  • The King's Highway 20 QEW E of Hamilton to QEW/ON-420 interchange, now Confederation Parkway, some prefer Rymal Road, and Lundy's Lane.
  • The King's Highway 22
  • The King's Highway 24. 2 km south of Cambridge and northward
  • The King's Highway 25, (Oakville (Bronte, suburban Toronto) to north of Grand Valley) now Bronte Road (south of Steeles).
  • The King's Highway 27, Etobicoke, Ontario to Midhurst, Ontario
  • The King's Highway 28, Port Hope to ON-7A, (which had a joint with ON-115 for 13 km to the Parkway exit), up to NE of Lakefield, at ON-134.
  • The King's Highway 29
  • The King's Highway 30
  • The King's Highway 32
  • The King's Highway 51
  • The King's Highway 57, Highway 3A junction at Beckett's Bridge to Highway 20 junction at Bismarck. Existed from 1934 to 1970.
  • The King's Highway 88, Highway 27 junction at Bond Head to Highway 11 junction in Bradford. Existed from 1938 to 1988
  • The King's Highway 97
  • The King's Highway 99, North of Brantford (Hwy. 5) to Ancaster
  • The King's Highway 100, MCF (ON-401) at exit??? to Former ON-2, East of London, now as Airport Road
  • The King's Highway 103, Highway 400 and 12 to Highway 69 junction, now a freeway.
  • The King's Highway 126, MCF (ON-401) S of London, (partially superhighway) to ON-2, some think extended to ON-22, now known as Highbury Avenue

400-series roads or freeways can be found here.

See also: List of Canadian highways by province, List of roads and highways