page_title: List of tallest buildings in Ontario
section_title: Buildings over 100 meters
hierarchical_section_title: List of tallest buildings in Ontario / Buildings over 100 meters
caption_attribution_description: English: Casino Windsor expansion
context_page_description: This list of tallest buildings in Ontario ranks skyscrapers and high rise buildings in the province of Ontario by height. Buildings in seven cities are included in this list; Toronto, Mississauga, Niagara Falls, Hamilton, London, Ottawa and Windsor, each having buildings taller than 110 meters.
  The tallest building in the province of Ontario is First Canadian Place 298 meters. Completed in 1976, it is also the tallest building in Canada and the 68th tallest building in the world. At the time of its completion, it was the tallest building in the world outside of Chicago and New York City.
  All of the buildings taller than 150 meters are in Toronto, Mississauga and Niagara Falls, all three cities being part of the Golden Horseshoe. The tallest building in Ottawa, Ontario's second largest city, rises to only 112.4 meters due to height restrictions put in place as to prevent any building from exceeding the height of the Peace Tower of parliament hill in Downtown Ottawa.
context_section_description: This list ranks buildings in Ontario that stand between least 100 m (328 ft) tall, based on CTBUH height measurement standards. This includes spires and architectural details but does not include antenna masts. An equal sign (=) following a rank indicates the same height between two or more buildings. Freestanding observation and/or telecommunication towers, while not habitable buildings, are included for comparison purposes; however, they are not ranked. One such tower is the CN Tower.
caption: Windsor, Ontario is the most southern metropolis in Canada with  a population of 330 000.
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