Atrium (formally known as "Atrium on Bay") is a large 1,000,000 square-foot retail and office complex in Toronto, Ontario, Canada. Atrium is located adjacent to the highly popular Yonge-Dundas Square, and was built upon the former site of the historic Ford Hotel Toronto, on the north side of Dundas Street West, extending from Yonge Street to Bay Street. The 14-floor, mixed-use building was constructed in 1981 with two levels of retail stores and restaurants. As part of downtown Toronto's PATH network, Atrium's Concourse Level is directly connected underground to the Dundas (TTC) subway station, the Toronto Eaton Centre across on Dundas Street, and the Toronto Coach Terminal located across Bay Street.
Major retail tenants in Atrium include Muji (First location in Canada), Long Tall Sally, Boat House and Rexall. Restaurants include St. Louis Bar and Grill on the north side, Pickle Barrel Grand at the Yonge Street entrance, Red Lobster at the Bay Street entrance, and Spring Rolls. A food court is located on the Concourse Level that includes McDonald's, Tim Hortons, Subway (restaurant), Fit for Life, Mustachio, Paris Croissant and Bakery, Feta Olives, Teriyaki Experience, Booster Juice, and more.
Atrium's other major tenants include the Canadian Imperial Bank of Commerce, which has a branch in the retail concourse as well as offices on several floors, and various arms of the Government of Ontario, including the Land Registry Office, an outlet of the Liquor Control Board of Ontario, and the Lottery Prize Claiming Centre for the Ontario Lottery and Gaming Corporation, located on Ground Level.
Atrium was filmed and used as a set for scenes in a shopping mall in the Canadian drama Flashpoint on the CTV Television Network. The interior was also used in the 1983 PBS TV movie Overdrawn at the Memory Bank.