| Brisson River | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Quebec |
| Subdivision Type3: | Region |
| Subdivision Name3: | Bas-Saint-Laurent |
| Subdivision Type4: | MRC |
| Subdivision Name4: | Rimouski-Neigette Regional County Municipality |
| Length Km: | 8.4 |
| Source1: | Mountain stream |
| Source1 Location: | La Trinité-des-Monts |
| Source1 Coordinates: | 48.1983°N -68.3658°W |
| Source1 Elevation: | 413m (1,355feet) |
| Mouth: | Rimouski River |
| Mouth Location: | La Trinité-des-Monts |
| Mouth Coordinates: | 48.1544°N -68.4261°W |
| Mouth Elevation: | 173m (568feet) |
| Tributaries Left: | (upstream) Grand Matinal stream, Petit Lac outlet in Nazaire |
| Tributaries Right: | (upstream) Coulée Laurent |
The Brisson River (French: Rivière Brisson) is a tributary of Rimouski River, flowing in the municipality of La Trinité-des-Monts, in the Rimouski-Neigette Regional County Municipality, in the region administrative Bas-Saint-Laurent, in the province of Quebec, in Canada.
Taken from its source on the northern slope of Mont Longue-Vue, the Brisson River descends from the mountains in a small deep valley to a plain where it flows on the east bank of the Rimouski River. The latter winds its way west, then heads north, to the south bank of the St. Lawrence River where it pours into the heart of the city of Rimouski.
The Brisson river takes its source from a mountain flow in the North-East part of the municipality of La Trinité-des-Monts, on the northern slope of "Mont Longue-vue" in the Zec du Bas-Saint-Laurent. This source is located at:
From the mouth of its source, the Brisson river flows over, divided into the following segments:
The Brisson river flows on the east bank of the Rimouski River, in La Trinité-des-Monts. This confluence is located at:
The term "Brison" constitutes a family name of French origin.
The toponym "Rivière Brisson" was formalized on December 5, 1968, at the Commission de toponymie du Québec.[2]