Union Station is a major railway station and intermodal transportation hub in Toronto, Ontario, Canada. It is located on Front Street West, on the south side of the block bounded by Bay Street and York Street in downtown Toronto. The station building is owned by the City of Toronto, while the train shed and trackage is owned by the commuter rail operator GO Transit. Union Station has been designated a National Historic Site of Canada since 1975, and a Heritage Railway Station since 1989.
Its central position in Canada's busiest inter-city rail service area, "The Corridor", as well as being the central hub of GO Transit's commuter rail service, makes Union Station the busiest transportation facility in Canada, serving over 250,000 passengers a day. More than half of all Canadian intercity passengers and 91% of all commuter train passengers travel through Union Station.
Intercity train services are provided at Union Station by Via Rail and Amtrak, while commuter rail services are operated by GO Transit. The station is also connected to the Toronto Transit Commission subway and streetcar system via its namesake subway station. GO Transit's Union Station Bus Terminal, located across Bay Street from the station building, is connected via the trainshed. The Union Pearson Express train service to Toronto Pearson International Airport operates from a separate UP Express Union Station located along the SkyWalk a short walk west of the main station building.