William R. Allen Road, also known as Allen Road, the Allen Expressway and colloquially as the Allen, is a short expressway and arterial road in Toronto. It starts as a controlled-access expressway at Eglinton Avenue West, heading north to just south of Transit Road, then continues as an arterial road north to Kennard Avenue, where it continues as Dufferin Street. Allen Road is named after Metro Toronto chairman William R. Allen and is maintained by the City of Toronto. Landmarks along the road include the Lawrence Heights housing project, Yorkdale Shopping Centre and Downsview Park, and Downsview Airport. A section of the Line 1 Yonge–University subway is located within the median of the expressway from Eglinton Avenue to north of Wilson Avenue.

Eglinton Avenue is a major east–west arterial thoroughfare in Toronto and Mississauga in the Canadian province of Ontario. The street begins at Highway 407 at the western limits of Mississauga, as a continuation of Lower Baseline in Milton. It traverses the midsection of both cities and ends at Kingston Road. Eglinton Avenue is the only street to cross all six former cities and boroughs of Metropolitan Toronto.