A lake is an inland body of water surrounded by land. Canada is the country with the largest number of lakes in the world. It is estimated that there are over 850,000 lakes in Canada that each have a surface area of at least 0.1 sq km. It also leads globally in the number of freshwater lakes.
Lake Superior is the largest lake in Canada and one of the five five great lakes of North America. It has a surface area of about 82,100 sq km (31,700 sq miles) and is shared between Canada and the United States. The largest lake located entirely within Canada is Great Bear Lake, which covers about 31,150 sq km (12,030 sq miles) and is situated in the Northwest Territories.
Following Canada, Russia ranks second in the number of lakes, while the United States comes third.

Canada is the country with most lakes in the world.
Some famous lakes in Canada
| Lake | Area | Province/territory of Canada |
|---|---|---|
| Lake Superior | about 82,100 square kilometers | Ontario |
| Lake Huron | about 59,600 square kilometers | Ontario |
| Great Bear Lake | about 31,150 square kilometers | Northwest Territories |
| Lake Winnipeg | about 24,500 square kilometers | Manitoba |
| Moraine Lake | about 0.5 square kilometers | Alberta |
| Emerald Lake | about 0.9 square kilometers | British Columbia |
| Peyto Lake | about 5.5 square kilometers | Alberta |
| Lake Erie | about 25,670 square kilometers | Ontario |
| Lake Ontario | about 19,010 square kilometers | Ontario |
| Great Slave Lake | about 27,200 square kilometers | Northwest Territories |
| Reindeer Lake | about 6,650 square kilometers | Saskatchewan and Manitoba |