Which country has the largest number of natural lakes?

Canada has the largest number of natural lakes of any country.

Canada contains an estimated 879,800 lakes larger than 0.1 square kilometres, according to widely cited geographic compilations. It also contains more lake area than any other country. Glaciers and ice sheets repeatedly scraped and deepened the land during the last ice ages, leaving immense numbers of basins that later filled with water.

The country includes parts of four of the five Great Lakes: Superior, Michigan, Huron, and Erie. Lake Ontario is shared by Canada and the United States, while Lake Michigan lies entirely within the United States. Canada also contains Great Bear Lake and Great Slave Lake, two of the largest lakes in North America.

Finland is famous as the Land of a Thousand Lakes, but its total is far below Canada's. Russia also has vast freshwater resources, including Lake Baikal, yet it has fewer lakes under commonly used national counts. Exact totals vary with the minimum lake size used.