| Rivière au Canard | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Quebec |
| Subdivision Type3: | Region |
| Subdivision Name3: | Estrie |
| Subdivision Type4: | MRC |
| Subdivision Name4: | Le Haut-Saint-François Regional County Municipality |
| Subdivision Type5: | Municipality |
| Subdivision Name5: | Saints-Martyrs-Canadiens and Weedon |
| Length Km: | 13.9 |
| Source1: | Streams |
| Source1 Location: | Saints-Martyrs-Canadiens |
| Source1 Coordinates: | 45.7879°N 71.5285°W |
| Source1 Elevation: | 343m (1,125feet) |
| Mouth: | Lake Louise (Estrie), Saint-François River |
| Mouth Location: | Weedon |
| Mouth Coordinates: | 45.7178°N 71.4225°W |
| Mouth Elevation: | 242m (794feet) |
| Progression: | Saint-François River, St. Lawrence River |
| Tributaries Right: | (upward) Ruisseau Mud, ruisseau Dufresne. |
The rivière au Canard (in English: Duck River) is a watercourse crossing the municipality of Weedon, in the Le Haut-Saint-François Regional County Municipality (MRC), in the administrative region of Estrie, in Quebec, in Canada.
The neighboring hydrographic slopes of Lac au Canard are:
The river has its source in Lac au Canard (length: ; altitude:) whose mouth is located on the south side. This lake is located southeast of Lake Nicolet, south of the center of the village of Saints-Martyrs-Canadiens and northwest of the center of the village of Saint-Gérard which is amalgamated into the municipality of Weedon.
From Lac au Canard, the Rivière au Canard flows for a distance of in the following segments:
The Canard River flows into Lake Louise, a lake crossed by the Saint-François River, near Weedon.
The toponym "Rivière au Canard" was made official on December 5, 1968, at the Commission de toponymie du Québec.[2]