This is the list of rivers which are in and flow through
Ontario
Ontario is the southernmost Provinces and territories of Canada, province of Canada. Located in Central Canada, Ontario is the Population of Canada by province and territory, country's most populous province. As of the 2021 Canadian census, it ...
. The watershed list includes
tributaries
A tributary, or an ''affluent'', is a stream or river that flows into a larger stream ('' main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which the ...
as well.
Dee River, flows between Three Mile Lake and Lake Rosseau.
List of rivers arranged by watershed
Hudson Bay
Hudson Bay, sometimes called Hudson's Bay (usually historically), is a large body of Saline water, saltwater in northeastern Canada with a surface area of . It is located north of Ontario, west of Quebec, northeast of Manitoba, and southeast o ...
Atlantic Ocean
The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the ...
Alphabetical list of rivers
See also
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List of rivers of Canada
The list of rivers of Canada is organized by drainage basin and province.
Canadian drainage basins
The major Canadian drainage basins are the following:
*Arctic Ocean
*Pacific Ocean
*Hudson Bay including James Bay and Ungava Bay
*Atlantic Ocean ...
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List of rivers of the Americas
This is a list of rivers of the Americas, it includes major historical or physiological significant rivers of the Americas grouped by region where they are located (Central America, Northern America, West Indies and South Americas). The longest ...
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Hudson Bay drainage basin
The Hudson Bay drainage basin is the drainage basin in northern North America where surface water empties into the Hudson Bay and adjoining waters. Spanning an area of about and with a mean discharge of about , the basin is almost entirely wi ...
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List of lakes of Ontario
This is an incomplete list of lakes in Ontario, a province of Canada. There are over 250,000 lakes in Ontario, constituting around 20% of the world's fresh water supply.
Larger lake statistics
This is a list of lakes of Ontario with an ar ...
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Geography of Ontario
Ontario is located in East/ Central Canada. It is Canada's second largest province by land area. Its physical features vary greatly from the Mixedwood Plains in the southeast to the boreal forests and tundra in the north. Ontario borders Mani ...
References
{{Canada topic, List of rivers of
Ontario
Ontario is the southernmost Provinces and territories of Canada, province of Canada. Located in Central Canada, Ontario is the Population of Canada by province and territory, country's most populous province. As of the 2021 Canadian census, it ...
*
Rivers
A river is a natural stream of fresh water that flows on land or inside caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of its course if it ru ...