| Lac Louise | |
| Pushpin Map: | Quebec |
| Location: | Les Appalaches Regional County Municipality / Le Granit Regional County Municipality, Quebec |
| Inflow: | Saint-François River |
| Outflow: | Saint-François River |
| Basin Countries: | Canada |
| Area: | NaNkm2 |
The Lake Louise is a lake in Estrie located in the municipality of Weedon, in the Les Appalaches Regional County Municipality (MRC), in the administrative region of Chaudière-Appalaches, in Quebec, in Canada.
Lake Louise is located in the Saint-François River valley just upstream of the confluence with the rivière au Saumon. The Saint-François River is its main tributary and outlet; the lake is a widening of the river. The rivière aux Canards also flows into it.