King's Highway 403 (pronounced "four-oh-three"), or simply Highway 403, is a 400-series highway in the Canadian province of Ontario that travels between Woodstock and Mississauga, branching off from and reuniting with Highway 401 at both ends and travelling south of it through Hamilton (where it is also known as the Chedoke Expressway) and Mississauga. It is concurrent with the Queen Elizabeth Way (QEW) for from Burlington to Oakville. Although the Highway 403 designation was first applied in 1963 to a short stub of freeway branching off the QEW, the entire route was not completed until August 15, 1997, when the section from Brantford to the then-still independent Town of Ancaster was opened to traffic. The section of Highway 403 between Woodstock and Burlington was formally dedicated as the Alexander Graham Bell Parkway on April 27, 2016.