| Lac La Blanche | |
| Location: | Mulgrave-et-Derry / Mayo, Papineau Regional County Municipality, Quebec |
| Pushpin Map: | Quebec |
| Coords: | 45.7236°N -75.3194°W |
| Inflow: | Inlet River |
| Outflow: | Blanche River |
| Basin Countries: | Canada |
| Length: | 4km (02miles) |
| Width: | 2.8km (01.7miles) |
| Islands: | 5 |
Lac La Blanche (French, meaning "White Lake") is a small lake located on the boundary between Mulgrave-et-Derry and Mayo, Quebec, Canada. The lake has three islands.
A 20.52km2 area between its eastern shores and Lac Britannique (Britannia Lake) is protected in the Forêt-la-Blanche Ecological Reserve. This area contains a rare old-growth forest and many endangered plant species.[1]
Fish species: mostly Largemouth bass, Yellow Perch, Sunfish, Catfish, and trout.