Cancelled expressways in Toronto

The cancelled expressways in Toronto were a planned series of municipal expressways in Toronto, Ontario, Canada that were only partially built or cancelled due to public opposition. Metropolitan Toronto's system of superhighways or freeways were developed during a period of rapid growth in the suburban municipalities and were intended to handle the projected level of traffic into and out of the core. At the same time, the Province of Ontario was expanding the 400-Series Highways which would connect to municipalities outside of Metro.

A coalition of citizens, many living within the path of the projected expressways campaigned against the plans. A former resident of New York City, Jane Jacobs brought her experience fighting expressways there to the coalition. The coalition was opposed to the demolition of homes and park lands, air pollution, noise and the high cost of construction. The Spadina Expressway, planned since the 1940s, was cancelled in 1971 after being only partially constructed. After the Spadina cancellation, the remaining expressway plans were abandoned and one strip of built expressway was eventually torn down.