Niagara Falls is a city in Ontario, Canada. It is located on the western bank of the Niagara River in the Golden Horseshoe region of Southern Ontario, with a population of 82,997 at the 2011 census. The municipality was incorporated on 12 June 1903. Across the Niagara River is Niagara Falls, New York.

The city is dominated by the Niagara Falls, a world-famous set of three large waterfalls on the Niagara River. The American Horseshoe falls can be best seen from the Canadian side of the river, so the city has one of the world's major tourist attractions. The natural spectacle attracts millions of tourists yearly. Apart from the river's natural attractions, it includes observation towers, high-rise hotels, souvenir shops, casinos and theatres, mostly with colourful neon billboards and advertisements, and sufficient parking to accommodate visitors. Further to the north or south, golf courses are operated alongside historic sites from the War of 1812.