Sunnyside Bathing Pavilion is a landmark public pavilion in the Sunnyside lakefront area of Toronto, Ontario, Canada. Built in 1922, its original function was to provide changing facilities for swimming in Lake Ontario, however lake conditions were often too cold and an adjoining public swimming pool was built in 1925. The Pavilion was renovated in 1980 to provide updated changing facilities and a café along the beach and a garden.