The Old City Hall is a Romanesque civic building and court house in Toronto, Ontario, Canada. It was the home of the Toronto City Council from 1899 to 1966 and remains one of the city's most prominent structures. The building is located at the corner of Queen and Bay Streets, across Bay Street from Nathan Phillips Square and the present City Hall in Downtown Toronto. The heritage landmark has a distinctive clock tower which heads the length of Bay Street from Front Street to Queen Street as a terminating vista.

Old City Hall was designated a National Historic Site in 1984.