| Legendre River | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Quebec |
| Subdivision Type3: | Region |
| Subdivision Name3: | Estrie |
| Subdivision Type4: | MRC |
| Subdivision Name4: | Le Granit Regional County Municipality |
| Subdivision Type5: | Municipality |
| Subdivision Name5: | Milan, Stornoway |
| Length: | 25.1km (15.6miles) |
| Source1: | Whitton Lake |
| Source1 Location: | Milan |
| Source1 Coordinates: | 45.5893°N -71.167°W |
| Source1 Elevation: | 518m (1,699feet) |
| Mouth: | Felton River |
| Mouth Location: | Saint-Romain |
| Mouth Coordinates: | 45.7389°N -71.137°W |
| Mouth Elevation: | 325m (1,066feet) |
| Progression: | Saint-François River, St. Lawrence River |
| Tributaries Left: | (upstream) |
| Tributaries Right: | (upstream) |
The Legendre River (in French: rivière Legendre) is a tributary of the Felton River which flows into the Baie Sauvage to the south of Grand lac Saint François which constitutes the head lake of the Saint-François River.
The course of the Legendre River crosses the territories of the municipalities of Milan and Stornoway, in the Le Granit Regional County Municipality (MRC), in the administrative region of Estrie, on the South Shore of the St. Lawrence River, in Quebec, Canada.
The main neighboring hydrographic slopes of the "Legendre river" are:
The Legendre River has its source on the northern slope of a mountain (summit at) of Milan. This source is located in a forest zone north of route 214.
From its source, the river flows over:
The Legendre River empties on the west bank of the Felton River, at upstream of the limit of Parc national de Frontenac and at upstream of the confluence of the Sauvage River.
The toponym "Rivière Legendre" was officially registered on December 5, 1968, at the Commission de toponymie du Québec.[2]