Ontario Highway 28

Highway 28
Route information
Maintained by the Ministry of Transportation of Ontario
Length	162.6 km[1] (101.0 mi)
Major junctions
South end	Highway 7 near Peterborough
East end	Highway 41 at Denbigh
Location
Country	Canada
Province	Ontario
Highway system
Ontario provincial highways Current Former 400-series
← Highway 27 → Highway 33
Former provincial highways Highway 29  →

King's Highway 28, commonly referred to as Highway 28, is a provincially maintained highway in the Canadian province of Ontario. The southwest–northeast route extends from Highway 7 east of Peterborough, to Highway 41 in Denbigh. The route passes over undulating hills before entering the Canadian Shield near Burleigh Falls, and gradually turns eastward.

Highway 28 was assigned in 1928, incorporating Highway 12A, one of the original provincial highways. It was extended in the following decade, first to Apsley and then to a new Department of Roads and Northern Development centre in Bancroft. In the early 1980s, Highway 500 was added as an extension, reaching Denbigh. Portions of the highway were decommissioned or transferred in the 1990s, and in 2003 Highway 134 was added, extending the southern terminus to Highway 7.