Ottawa, city, capital of Canada, located in southeastern Ontario. Ottawa was named the capital of the Province of Canada in 1857 and retained that status when Canada became a dominion within the British Commonwealth in 1867. In the eastern extreme of the province, Ottawa is situated on the south bank of the Ottawa River across from Gatineau, Quebec, at the confluence of the Ottawa (Outaouais), Gatineau, and Rideau rivers.
The earliest inhabitants of the Ottawa region were members of the Algonquin First Nation (Native Americans), who established settlements in the Ottawa River valley. The tribe known as the Ottawa (Outaouais), however, settled in the area for only a short period during the mid-1600s; their traditional territory was considerably farther west on Lake Huron.
