Largest lakes & reservoirs in Canada by acres
There is no widely-accepted minimum surface area that defines a lake. What LakeLubbers describes as a lake, you might call a pond. Acreage of a lake (or sometimes square kilometers) is most often measured at the top surface area when the lake is at normal elevation. The surface area can be considerably smaller or larger when lake levels are lower or higher than normal. North America’s Lake Superior is the world’s largest freshwater lake by this measure.The other measure of a lake’s size is the lake’s water volume. By that measure, the world’s largest freshwater lake is Lake Baikal in Siberia.
You can find many of the world’s largest lakes (acres) on LakeLubbers in the comparison table below. Note: For some lakes, "Largest Lakes - Acres" data is unknown or does not apply, so you may see fewer lakes than the total 164 articles we have published for Canada lakes.
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Below are lakes within Canada > Compared by surface area in acres. This list does not represent all lakes in Canada, only the 164 Canada lake articles we have published on the LakeLubbers website.
Lake name | Surface area in acres | Lake description |
---|---|---|
Lake Diefenbaker (Canada, Saskatchewan, Canada) |
106,255 ac | Also known as Diefenbaker Lake Lake Diefenbaker, the largest reservoir in southern Saskatchewan, is developing a reputation as a favorite vacationland for visitors from all over Can … |
Kootenay Lake, BC (British Columbia, Canada, Canada) |
96,124 ac | Also known as Lake Kootenay Kootenay Lake’s deep, clear waters stretch over 60 miles and 96,000 acres, reflecting the icy peaks of Kokanee Glacier. The lake is beautiful, ringed … |
Cold Lake (Alberta, Canada, Canada, Saskatchewan, Canada) |
92,160 ac | Also known as Big Fish Lake (historical) It’s hard to believe that a water body named Cold Lake would be a summer water sports paradise, but this large lake on the Alberta-Saskatchewan border … |
Okanagan Lake, BC (British Columbia, Canada, Canada) |
86,733 ac | Also known as Lake Okanagan Okanagan Lake, located in British Columbia’s Napa of the North Country, is a vacationer’s paradise. Its sheer size and convenient location make this w … |
Shoal Lake (Canada, Manitoba, Canada, Ontario, Canada) |
80,000 ac | Remote, inviting and beautiful describes Shoal Lake. Sprawling across about 80,000 acres in southwestern Ontario at the border with Manitoba, Shoal La … |
Shuswap Lake, BC (British Columbia, Canada, Canada) |
76,502 ac | With 889 miles of shoreline and a multitude of provincial parks, 76,602-acre Shuswap Lake in the Southern Interior of British Columbia offers unlimite … |
Lake Kipawa (Canada, Quebec, Canada) |
74,132 ac | Also known as Lake Kippewa Sprawled across one of western Quebec’s most beautiful environments, Lake Kipawa offers nearly 75,000 acres of pristine water stretching into countles … |
Lake Timiskaming (Canada, Ontario, Canada, Quebec, Canada) |
72,960 ac | Also known as Lake Temiskaming, Lac Temiscamingue Large, scenic and inviting, Lake Timiskaming forms part of the border between Ontario and Quebec. A full 68 miles long, Lake Timiskaming is about 5 mi … |
Kawartha Lakes (Canada, Ontario, Canada) |
67,403 ac | Also known as The Kawarthas The Kawartha Lakes are a band of beautiful lakes in south-central Ontario, Canada that form the upper watershed of the Trent River. Although 14 lakes … |
Lake St. Francis, NY / Canada (Canada, New York, Ontario, Canada, Quebec, Canada, Thousand Islands Region, NY, US Mid-Atlantic Region, USA) |
67,213 ac | Also known as Lac Saint-Francois Lake St. Francis is part of the 2,340 mile system of locks, canals, and channels that link the Atlantic Ocean to the Great Lakes and the St. Lawrence … |
Last Mountain Lake, SK (Canada, Saskatchewan, Canada) |
57,081 ac | Also known as Long Lake A visit to Regina Saskatchewan wouldn’t be complete without a trip to Last Mountain Lake. The lake was named for a local Cree legend that the Great Sp … |
Harrison Lake (British Columbia, Canada, Canada) |
53,799 ac | Also known as Lake Harrison, Lake Qualts, Lake Kwals Found in Canada’s beautiful Fraser Valley, Harrison Lake is the largest body of fresh water in southwestern British Columbia. Located 75 miles (120 ki … |