The Toronto and York Radial Railway was a transit operator providing services to the suburbs of Toronto, Ontario, Canada. It was a subsidiary of the Toronto Railway Company. The company was created by merging four Toronto-area interurban operations. The company was part of the empire of railway entrepreneurs Sir William Mackenzie and Donald Mann which included the Canadian Northern Railway and the parent Toronto Railway Company. The line was abandoned by the TTC in 1948.

The Toronto Railway Company (TRC) was the operator of the streetcar system in Toronto between 1891 and 1921. It electrified the horsecar system it inherited from the Toronto Street Railway, the previous operator of streetcar service in Toronto. The TRC was also a manufacturer of streetcars and rail work vehicles, a few of which were built for other streetcar and radial operators.