Largest lakes & reservoirs in Ontario by shoreline length
This is a comparison for lakes within Canada > Ontario > - Compared by Longest Shoreline Length in miles.Note: For some lakes, "Longest Shorelines" data is unknown or does not apply, so this table may display fewer lakes than the total 55 articles we have published for Ontario lakes.
Search results: Sort lakes by miles of shoreline
Lake name  |
Shoreline length in miles |
Lake description |
|---|---|---|
| Lake of the Woods MB (Canada, Manitoba, Midwest, Minnesota, Northwest, Ontario, USA) |
25,000 mi | 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… |
| Lake Michigan-Huron (Canada, Chicagoland, Great Lakes, Illinois, Indiana, Lake Michigan Region, Michigan, Midwest, North, Northeast, Northwest, Ontario, Southwest, USA, Upper Peninsula, West Central, Wisconsin) |
5,463 mi | Lake Michigan and Lake Huron – two of North America’s Great Lakes – are contiguous and they share the same elevation of 577 feet above sea level. They… |
| Lake Huron (Canada, East Central, Great Lakes, Michigan, Midwest, Northeast, Ontario, USA, Upper Peninsula) |
3,825 mi | A glacial lake of epic proportions, Lake Huron is the second largest of the five Great Lakes by surface area, boasting 23,010 square miles and an incr… |
| Lake Superior (Canada, Great Lakes, Lake Superior Northwoods Region, Michigan, Midwest, Minnesota, Northeast, Ontario, USA, Upper Peninsula, Wisconsin) |
2,726 mi | Skipping over state and country borders, Lake Superior, the largest, deepest, coldest, cleanest, least developed, and most pristine of the Great Lakes… |
| Rainy Lake (Canada, Midwest, Minnesota, Northeast, Ontario, USA) |
929 mi | 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… |
| Lake Erie (Canada, Chautauqua-Allegheny, Great Lakes, Greater Niagara, Michigan, Mid-Atlantic, Midwest, New York, Northeast, Northwest, Ohio, Ontario, Pennsylvania, Southeast, USA) |
871 mi | 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 Ontario (Canada, Finger Lakes, Great Lakes, Greater Niagara, Mid-Atlantic, New York, Ontario, Thousand Islands, USA) |
712 mi | Lake Ontario, one of the world’s five Great Lakes, weaves over state and country borders, delighting Americans, Canadians, and visiting tourists with… |
| Kawartha Lakes (Canada, Ontario) |
606 mi | 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 Nipissing (Canada, Ontario) |
494 mi | Located in the Near North region of Ontario, Lake Nipissing is the fifth largest lake in Ontario excluding the Great Lakes. This relatively shallow 21… |
| Namakan Lake (Canada, Midwest, Minnesota, Northeast, Ontario, USA) |
285 mi | 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… |
| Lake Muskoka (Canada, Ontario) |
177 mi | 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… |
| Northern Light Lake (Canada, Ontario) |
177 mi | Sprawling and unspoiled, Northern Light Lake spreads across western Ontario’s Granite Shield like a blanket of water. The lake isn’t well-known; only… |
