Niagara-on-the-Lake (2001 population 13,839) is a town where the Niagara River meets Lake Ontario in Niagara Region, Ontario, Canada.
In 1792 the newly renamed Niagara was named the capital of Upper Canada, but lost that distinction to Toronto as Niagara-on-the-Lake's proximity to the United States presented a danger.
The present name was adopted around 1880 to distinguish the town from Niagara Falls.