St. Mary's Church is a Roman Catholic church located at 130 Bathurst Street at Portugal Square in the Niagara neighbourhood of Toronto, Ontario, Canada. The parish was established by Irish immigrants in 1852. The Gothic Revival church was designed by Joseph Connolly and completed in 1889, with the tower finished in 1905. It stands as the picturesque western view terminus for Adelaide Street.

Kenneth Vincent John Wheeler, OC was a Canadian composer and trumpet and flugelhorn player, based in the U.K. from the 1950s onwards.