List of Ontario rivers

This is the list of rivers which are situated in and flow through Ontario. The watershed list includes tributaries as well.

List of rivers arranged by watershed

Hudson Bay watershed

In order of drainage into Hudson Bay from west to east:
*Echoing River (partially in Manitoba), draining via Gods River and Hayes River in Manitoba
**Pasquatchai River
**Sturgeon River (mostly in Manitoba)
*Black Duck River
*Severn River
**Beaver River
**Fawn River
**Sachigo River
***Wapaseese River
***Beaver Stone River
**Blackbear River
**Makoop River
**Windigo River
**Cobham River (source in Manitoba)
**McInness River
*Winisk River
**Asheweig River
**Pipestone River
***North Pipestone River
*Sutton River
**Aquatuk River
*Kinushseo River

Nelson River watershed

via Lake Winnipeg in Manitoba

*Berens River
*Bloodvein River
*Winnipeg River
**Lake of the Woods watershed
***Rainy River
***Rainy Lake
****Turtle River
****Pipestone River
***Seine River
****Farrington Creek
****Cherry River
****Manitou River
*****Manitou Stretch, Lower and Upper Manitou Lake
******Peep Bay
******Grant Lake
******Mosher Bay
****McTaggart Creek
****MacDonald's Inlet
****Big Canoe River, Cuttle Lake
****Clement Creek
****Sleeman Creek
**English River
***Marchington River
****Sturgeon River
***Sturgeon River
***Vermilion River
***Wabigoon River
***Wapesi River

James Bay watershed

In order of drainage into James Bay from north to south:
*Lakitusaki River
*Opinnagau River
*Ekwan River
*Attawapiskat River
**Pineimuta River
*Kapiskau River
*Albany River
**Kenogami River
***Pagwachuan River
***Flint River, Flint Lake
****Hinata River
***Burrows River, Burrows Lake
****Murky Creek
****Cotoneaster Lake
***Kemogamisis River
****Isis Creek
****Fecteau Lake
***Wintering Lake
****Westside Bay
****Pout River
***Drowning River
***Kabinakagami River
***Nagagami River
***Otasawian River
***Shekak River
**Ogoki River
***Allanwater River
****Brightsand River
***Flindt River
*Moose River
**Kwataboahegan River
**Cheepash River
**Abitibi River
***Frederick House River
**Mattagami River
***Kapuskasing River
****Nemegosenda River
*****Chapleau River
***Groundhog River
****Ivanhoe River
****Nat River
**Missinaibi River
***Brunswick River
***Fire River
***Hay River
***Mattawitchewan River
****Albany Forks
*****Cameron Creek
*****Oba River, Oba Lake
***Pivabiska River
***Opasatika River
***Soweska River
*Partrigde River
*Kesagami River
*Harricana River (mostly in Quebec)
**Lawagamau River
*Kattawagami River (mostly in Quebec)

Atlantic Ocean watershed

Lake Superior watershed

In order of ascent from west to east:
*Pigeon River
**Arrow River
**Pine River
*Kaministiquia River
**Mission River
**McKellar River
**Whitefish River
**Shebandowan River
**Redhorse River
**Bear River
**Rat River Bay, Rat River
*Aguasabon River, Long Lake
*Neebing River
*McIntyre River
*Imogene River
*Current River
*Black Sturgeon River
*Nipigon Strait, Nipigon Bay, Nipigon River, Lake Helen
**Lake Nipigon watershed
***Windigo River
****Mud River
***Ogoki River
***Kopka River
***Ombabika River
***Ogaman River
***Blackwater River
***Gull River
*Steel River
*Pic River
**Black River
**Kagiano River
*White River
*Willow River
*Cascade River
*Swallow River
*Pukaskwa River
*Julia River
*Magpie River
*Dog River
*Michipicoten River
*Old Woman River
*Baldhead River
*Gargantua River
*Red Rock River
*Sand River
*Agawa River
*Montreal River
*Harmony River
**Chippewa River
*Batchawana River
*Carp River
*Coldwater River
*Goulais River

Lake Huron/Georgian Bay

In alphabetical order

*Ausable River
**Little Ausable River
*Bayfield River
*Beaver River
**Boyne River
*Bighead River
*Blind River
*Coldwater River
*French River
**Wanapitei River
**Pillow River
**Murdock River
**Wolseley River
**Little French River
**Restoule River
**Hall River
**Lake Nipissing watershed
***Amateewakea River
***Cache River
***Sturgeon River
****Smoky River
****Temagami River
***Little Sturgeon River
***Duchesnay River
***La Vase River
***Wasi River
***South River
*Go Home River
*Kagawong River
*Magnetawan River
*Maitland River
*Manitou River
*Mindemoya River
*Mississagi River
*Moon River (Cottage Country)
**Muskoka River
***Indian River
***Hollow River
***Oxtongue River
***Buck River
***East River
*Musquash River
*Nine Mile River
*Nottawasaga River
**Boyne River
**Mad River
**Pine River
*Penetangore River
*Pickerel River
*Pottawatomi River
*Pretty River
*St. Marys River
**Garden River
**Bar River
*Sauble River
**Rankin River
*Saugeen River
*Seguin River
*Serpent River
*Severn River (part of the Trent-Severn Waterway)
**Lake Simcoe watershed
***Gull River (Balsam Lake)
*Spanish River
**Agnes River
**Aux Sables River
**Vermilion River
*Sydenham River
**Spey River
*Teeswater River
*Whitefish River

Lake Erie watershed

*Detroit River
**Lake St. Clair watershed
***Little River
***Pike Creek
***Puce River
***Belle River
***Ruscon River
***Thames River
****Avon River
****Dingman Creek
****Jeanettes Creek
****McGregor Creek
****Medway Creek
****Pottersburg Creek
****Stoney Creek
****Waubuno Creek
***Sydenham River
***St. Clair River
*Lynn River
*Grand River
**Conestogo River
**Eramosa River
**Nith River
**Speed River

Lake Ontario watershed

In order of ascent mainly from west to east

*Niagara River
**Lyon Creek
**Two Mile Creek
**Tea Creek
*Niagara Falls
**Welland River
***Black Creek (Niagara)
*Jordan Harbour watershed
**Twenty Mile Creek
*Red Hill Creek (Hamilton)
*Burlington Bay watershed
**Sulphur Creek
*Bronte Creek
*Sixteen Mile Creek (Oakville)
*Credit River
*Etobicoke Creek
**Heart Lake (Brampton)
**Elmcrest Creek (Toronto)
*Mimico Creek
*Humber River
**Black Creek (Toronto)
**Emerson Creek
**Jersey Creek
**Rainbow Creek (Woodbridge)
***Robinson Creek (Toronto)
**West Humber River
**East Humber River
*Toronto Harbour
**Garrison Creek
**Russell Creek
**Taddle Creek
**Don River
***West branch Don River
****Castle Frank Brook
***Taylor Creek
***East Branch Don River
****Beaver Creek (Toronto)
****German Mills Creek
****Deerlick Creek
*Highland Creek
*Rouge River (Toronto-Pickering)
*Petticoat Creek (Pickering)
*Duffins Creek
**Miller's Creek
**Ganatsekiagon Creek
*Brougham Creek
*Pringle Creek
*Corbett Creek
*Goodman Creek
*Robinson Creek
*Darlington Creek
*West Side Creek
*Soper Creek
*Wilmont Creek
*Foster Creek
*Graham Creek
*Carruthers Creek
*Ganaraska River (Port Hope)
*Trent River (part of the Trent-Severn Waterway)
**Crowe River
**Rice Lake watershed
***Otonabee River
****Fenelon River
**Gull River (Balsam Lake)
*Moira River (Belleville)
**Black River
**Clare River
**Skootamatta River
*Salmon River
*Napanee River
*Cataraqui River (Kingston)
**Rideau Canal system
*Gananoque River

Saint Lawrence River watershed

*Saint Lawrence River
*Raisin River

Ottawa River watershed

In order of ascent mainly from west to east

*Montreal River
**Lady Evelyn River
*Mattawa River
**Amable du Fond River
**Kaibuskong River
**North River
*Chalk River
*Petawawa River
**Barron River
**Crow River
**North River
**Little Madawaska River
**Nipissing River
***Tim River
*Muskrat River
**Indian River
*Bonnechere River
**Sherwood River
**Pine River
**Aylen River
*Madawaska River
**Opeongo River
**York River
***Little Mississippi River
***North York River
****Clyde Creek
**South Madawaska River
***Galipo River
***Crossbar River
**North Madawaska River
*Mississippi River
**Indian River
**Clyde River
***Little Clyde River
**Fall River
*Carp River
*Rideau River
**Jock River
**Tay River
*South Nation River
**Castor River
***North Castor River
***Middle Castor River
***South Castor River
***East Castor River
**Little Castor River
*Rigaud River
**East Rigaud River

Alphabetical list (excluding lakes)

Rivers

ee also

Rivers by province and territory

*List of rivers in Canada
*List of tributaries of Hudson Bay
*Alphabetical list of rivers in Canada
*Rivers of the Americas
*List of creeks in Ontario