| Auaiá-Miçu River | |
| Source1 Location: | São Félix do Araguaia |
| Mouth Location: | Xingu River |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
| Mouth Coordinates: | -10.8504°N -53.1234°W |
| Tributaries Left: | Preto River, São Francisco River |
| Subdivision Type2: | State |
| Subdivision Name2: | Mato Grosso |
The Auaiá-Miçu River is a river located in the Mato Grosso state of western Brazil.