| Larochelle River | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Quebec |
| Subdivision Type3: | Region |
| Subdivision Name3: | Chaudière-Appalaches |
| Subdivision Type4: | MRC |
| Subdivision Name4: | Les Appalaches Regional County Municipality |
| Length: | 15.7km (09.8miles) |
| Source1: | Forest streams |
| Source1 Location: | Saint-Julien |
| Source1 Coordinates: | 46.0025°N -71.5381°W |
| Source1 Elevation: | 370m (1,210feet) |
| Mouth: | Bécancour River |
| Mouth Location: | Irlande |
| Mouth Coordinates: | 46.0609°N -71.5449°W |
| Mouth Elevation: | 200m (700feet) |
| Progression: | Bécancour River, St. Lawrence River |
| Tributaries Left: | (upstream) ruisseau Gardner, ruisseau Provencher, ruisseau Sasseville |
| Tributaries Right: | (upstream) |
| Country: |  Canada |
The Larochelle River (in French: rivière Larochelle) is a tributary of the Bécancour River. It flows in the municipalities of Saint-Julien and Irlande, in the Les Appalaches Regional County Municipality (MRC), in the administrative region of Chaudière-Appalaches, in Quebec, in Canada.
The main neighboring watersheds of the Larochelle river are:
The Larochelle River has its source in the mountains, west at the village of Saint-Julien, northeast of the village of Saint-Fortunat and northwest of the village of Saint-Jacques-le-Majeur-de-Wolfestown.
From its head, the Larochelle river flows over divided into the following segments:
The Larochelle river empties on the west bank of the Bécancour River. This confluence is located 1.1 east of the hamlet "Maple Grove", upstream from "Lac à la Truite" and in upstream of William Lake.
The toponym "rivière Larochelle" was made official on August 17, 1978, at the Commission de toponymie du Québec.[2]