Sunnyside is a lakefront district in Toronto, Ontario, Canada. It includes a beach and park area along Lake Ontario's Humber Bay, from west of Exhibition Place to the mouth of the Humber River. The area has several recreation uses, including rowing clubs, sports clubs, picnic areas, playgrounds, a nightclub, a bathing pavilion and public pool. The area is a long strip along the lakeshore, bounded by the Gardiner Expressway and rail lines, which separate it from the Parkdale, Roncesvalles and Swansea neighbourhoods to the north. The name originates in a local farm owned by John Howard, which was situated just to the north, on the location of the current St. Joseph's Health Centre hospital.