| Bark Lake | |
|---|---|
| Location | Township of South Algonquin |
| Primary inflows | Madawaska River, Opeongo River |
| Primary outflows | Madawaska River |
| Basin countries | Canada |
| Max. length | 14.0 km (8.7 mi) |
| Max. width | 6.0 km (3.7 mi) |
| Surface elevation | 450 m (1,476 ft) |
Bark Lake is a lake in the Township of South Algonquin, in Nipissing District in Ontario, Canada. It lies near Madawaska, Ontario on the Madawaska River where the tributary Opeongo River joins.