| Coti River | |
| Pushpin Map: | Brazil |
| River System: | Curuquetê River |
| Source1 Location: | Amazonas state |
| Mouth Coordinates: | -8.6036°N -65.5489°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
The Coti River (Portuguese: Rio Coti) is a river of Amazonas state in north-western Brazil, a tributary of the Curuquetê River.
The river flows through the Mapinguari National Park, a conservation unit created in 2008.