Madawaska Lake

For the lake near Arnprior, Ontario, see Lake Madawaska.

Madawaska Lake
Location	Ontario
Coordinates	45°19′48″N 78°23′10″W / 45.330°N 78.386°W / 45.330; -78.386Coordinates: 45°19′48″N 78°23′10″W / 45.330°N 78.386°W / 45.330; -78.386
Basin countries	Canada

Madawaska Lake is a lake covering some 168 km² (65 sq mi) located in Haliburton County, Ontario, within the boundaries of Algonquin Provincial Park. The only piece of private land on the lake is owned by the Salvation Army.

The lake is not accessible by road.