| Rivière-Saint-Jean | |
| Pushpin Map: | Canada Eastern Quebec |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in eastern Quebec |
| Coordinates: | 48.8333°N -119°W |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Established Title1: | Constituted |
| Established Date1: | January 1, 1986 |
| Area Total Km2: | 1756.21 |
| Area Land Km2: | 1748.14 |
| Population Total: | 0 |
| Population As Of: | 2021 |
| Population Density Km2: | 0.0 |
| Population Blank1 Title: | Pop (2016-21) |
| Population Blank1: | 0.0% |
| Population Blank2 Title: | Dwellings |
| Population Blank2: | 3 |
| Utc Offset: | −5 |
| Utc Offset Dst: | −4 |
| Utc Offset1: | -5 |
| Utc Offset1 Dst: | -4 |
| Blank Name: | Highways |
Rivière-Saint-Jean is an unorganized territory in the Gaspésie–Îles-de-la-Madeleine region of Quebec, Canada. It is bisected by Quebec Route 198 that runs along the banks of the York River.
The territory is named after the Saint-Jean River that is considered one of the best salmon rivers in Quebec. This long river has its source in the Chic-Choc Mountains, about south of Murdochville, and runs in a south-east direction for the first, then east to the Bay of Gaspé. Portions of the river are protected in the Rivière-Saint-Jean Wildlife Reserve.[1]
The only locality in the territory is Grand-Étang,[2] located along Route 132 at the namesake Grand Étang (French for "Great Pond").[3]