| Rivière au Lard | |
| Pushpin Map: | Quebec |
| Subdivision Type1: | Country |
| Subdivision Type2: | Province |
| Subdivision Type3: | Region |
| Subdivision Name3: | Mauricie |
| Length: | 21.2km (13.2miles) |
| Source1: | Massicotte Lake |
| Source1 Location: | Notre-Dame-du-Mont-Carmel, Les Chenaux Regional County Municipality, Mauricie administrative region, Quebec, Canada |
| Source1 Coordinates: | 46.5003°N -72.5917°W |
| Source1 Elevation: | 103m (338feet) |
| Mouth: | Champlain River |
| Mouth Location: | Saint-Luc-de-Vincennes, Les Chenaux Regional County Municipality |
| Mouth Coordinates: | 46.4475°N -72.5006°W |
| Mouth Elevation: | 29m (95feet) |
The rivière au Lard (English: Bacon River) flows on in the municipality of Notre-Dame-du-Mont-Carmel, then those of Saint-Maurice, Saint-Narcisse and Saint-Luc-de-Vincennes, in the Les Chenaux Regional County Municipality, in the administrative region of Mauricie, in Quebec, in Canada.
The Rivière au Lard rises in the marshes east of Lac Valmont in the municipality of Notre-Dame-du-Mont-Carmel.
After recovering two streams, the river heads to the east and crosses the boundary of the municipality of Saint-Maurice. It then flows on to cross the road near the Désilets lake. It then travels eastwards to cross the limit of Saint-Narcisse where it makes a short foray of, branching south to return to flow in Saint-Maurice on . She then crosses the road near the hamlet Radnor-des-Forges.
The route then descends on to route 352, northeast of the village of Saint-Maurice. From there, the river descends to the southeast, first on to collect the Gagnon stream, then to the Cordon stream and to cross the road along the Champlain River on the north side. It then travels to its mouth.
The waters of the Rivière au Lard flow into the Champlain River, at Saint-Maurice, northeast of the route 352 and from the limit of the Cap-de-la-Madeleine sector of the city of Trois-Rivières. The start of its route is mainly in the forest, while the end is in the agricultural area.
The toponym Rivière au Lard was formalized on December 5, 1968 at the Place Names Bank of the Commission de toponymie du Québec[1]