Deepest lakes & reservoirs in Ontario, Canada by maximum depth (ft)
The estimated greatest depth of the water in a lake can be measured at the lake’s normal elevation. If the water volume and surface area of a lake are known, an estimate of the lake’s average depth can be calculated:Water volume ÷ Surface Area = Average Depth
Example: 1,000,000 acre-feet ÷ 20,000 acres = 50 feet average depth.
You can find many of the the world’s deepest lakes on LakeLubbers. If you sort the list, you will find the (maximum depth of) the shallowest lakes in our database. Note: For some lakes, lake depth data is unknown, so this table may display fewer lakes than the total 55 articles we have published for Ontario, Canada lakes.
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Use our free interactive vacation rental map to search and compare multiple vacation properties at a glance. Enter a lake name, a state or city and then simply click on a listing to compare all similar properties, best rates and availability for your dates.Search results: Sort lakes by max depth (feet)
Below are lakes within Canada > Ontario, Canada > Compared by maximum depth in feet. This list does not represent all lakes in Ontario, Canada, only the 55 Ontario, Canada lake articles we have published on the LakeLubbers website.
Lake name | Max depth in feet | Lake description |
---|---|---|
Kennisis Lake (Canada, Ontario, Canada) |
223 ft | A true jewel in the crown of Ontario’s Cottage Country, 3500-acre Kennisis Lake has been the prefect vacation getaway for generations of Canadian cott … |
Lake Muskoka, ON (Canada, Ontario, Canada) |
220 ft | Also known as Muskoka Lake, Muskoka Lakes Region Lake Muskoka, located in Ontario’s Muskoka Lakes Region, is one of Canada’s most famous lakes. Actually a chain of lakes, Muskoka joins Lake Joseph an … |
Lake Erie (Canada, Chautauqua-Allegheny Region, NY, Great Lakes Region, PA, Great Lakes of North America, Greater Niagara Region, NY, Michigan, New York, Northeast Ohio, Northwest Ohio, Ohio, Ontario, Canada, Pennsylvania, Southeast Michigan, US Mid-Atlantic Region, US Midwest Region, USA) |
210 ft | Lake Erie, one of the Great Lakes of North America, straddles the borders of Ohio, Pennsylvania, New York, Michigan, and the Canadian province of Onta … |
Lake of the Woods, MN / Canada (Canada, Manitoba, Canada, Minnesota, Northwest Minnesota, Ontario, Canada, US Midwest Region, USA) |
210 ft | Spanning the border from Minnesota into the Canadian provinces of Ontario and Manitoba, Lake of the Woods is an enormous body of water over 68 miles l … |
Haliburton Lake (Canada, Ontario, Canada) |
180 ft | Haliburton Lake is located in Ontario, Canada in a region called the Haliburton Highlands. The name was given due to the beautiful scenery that resemb … |
Round Lake, ON (Canada, Ontario, Canada) |
180 ft | Round Lake is a spectacular 7,596-acre lake located in Renfrew County, Ontario, Canada. Renfrew County is part of the Ottawa Valley which was carved b … |
Rainy Lake, MN / Canada (Canada, Minnesota, Northeast Minnesota, Ontario, Canada, US Midwest Region, USA) |
161 ft | Rainy Lake’s sprawling 221,000 acres straddle the border of the United States and Canada. Known as a water sports lover’s paradise, Rainy Lake is loca … |
Lac des Chats (Canada, Ontario, Canada, Quebec, Canada) |
157 ft | Also known as Chats Lake Lac des Chats is more than a ‘wide spot’ on the Ottawa River. Champlain and other explorers remarked on the abundance of catfish along the waterway, s … |
Lac Seul (Canada, Ontario, Canada) |
155 ft | Also known as Lake Seul The second-largest lake entirely within Ontario, Lac Seul has somehow escaped the notice of the casual vacationer looking for a northwoods getaway. Th … |
Namakan Lake (Canada, Minnesota, Northeast Minnesota, Ontario, Canada, US Midwest Region, USA) |
151 ft | Also known as Namakan Reservoir Namakan Lake’s delights await the lucky visitor. Covering more than 24,000 acres with many small islands, about half of the lake is located in Minneso … |
Otter Lake, ON (Canada, Ontario, Canada) |
147 ft | Also known as Big Otter Lake Otter Lake is a sparkling 1,252-acre lake located near Parry Sound, Ontario, in the Georgian Bay region known as The 30,000 Islands. The Georgian Bay … |
Little Kennisis Lake (Canada, Ontario, Canada) |
144 ft | Little Kennisis Lake is the smaller counterpart to Kennisis Lake, which is one of the largest lakes in the Haliburton Highlands of Ontario, Canada. Li … |