| Rivière des Rochers | |
| Pushpin Map: | Canada Alberta |
| Pushpin Map Caption: | Location of mouth within Alberta |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type3: | Province |
| Subdivision Name3: | Alberta |
| Source1: | Lake Athabasca |
| Source1 Location: | Alberta, Canada |
| Mouth: | Slave River |
| Mouth Location: | Alberta, Canada |
| Mouth Coordinates: | 58.9814°N -111.4036°W |
Rivière des Rochers (French for "River of Rocks") is a river in Alberta in the Peace–Athabasca Delta and Wood Buffalo National Park. It is the main outflow of Lake Athabasca and flows northward, around many islands, and meets with the Peace River to form the Slave River. Near its mouth, the river splits into multiple channels, and forms a delta on the Slave River.[1] During high water level periods in the late spring and summer, the flow of the Rivière des Rochers can sometimes reverse, with water flowing from the Peace River system back into Lake Athabasca.[2] [3]