| Petite rivière Pot au Beurre | |
| Name Other: | Old name: "Troisième rivière Pot au Beurre" |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Quebec |
| Subdivision Type3: | Region |
| Subdivision Name3: | Montérégie |
| Subdivision Type4: | MRC |
| Subdivision Name4: | Pierre-De Saurel Regional County Municipality |
| Subdivision Type5: | Municipality |
| Subdivision Name5: | Yamaska, Sainte-Victoire-de-Sorel |
| Length: | 8.8km (05.5miles) |
| Source1: | Agricultural streams |
| Source1 Location: | Saint-Robert |
| Source1 Coordinates: | 45.9857°N 72.9895°W |
| Source1 Elevation: | 17m (56feet) |
| Mouth: | Rivière Pot au Beurre |
| Mouth Location: | Yamaska |
| Mouth Coordinates: | 46.0492°N 72.9844°W |
| Mouth Elevation: | 9m (30feet) |
| Tributaries Left: | (upward) décharge des Dix, décharge Desrosiers, décharge des Dix. |
| Tributaries Right: | Décharge des Lots. |
The Petite rivière Pot au Beurre (in English: Little River butter pot) is a tributary of the rivière Pot au Beurre. It flows north into the municipalities of Saint-Robert and Yamaska in the Pierre-De Saurel Regional County Municipality (MRC), in the administrative region of Montérégie, on the South Shore of the St. Lawrence River, in Quebec, Canada.
The main neighboring hydrographic slopes of the Little Pot-au-Beurre river are:
The "Petite rivière Pot au Beurre" has its source in an agricultural area at (in direct line) north of the village of Saint-Robert, in Montérégie.
From its source, the course of the Petite Rivière Pot au Beurre descends towards the north in an agricultural zone, then in a marsh zone at the end of the course, with a drop of, according to the following segments:
The "Petite rivière Pot au Beurre" empties in a marsh area on the southeast shore of the rivière Pot au Beurre, at upstream of the confluence of the latter with the Yamaska River.
This toponym is linked to the "Pot au Beurre river" of which it is a tributary.
The toponym "Petite rivière Pot-au-Beurre" was officially registered on August 28, 1980, at the Commission de toponymie du Québec.[2]