| São João River | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
| Subdivision Type2: | State |
| Subdivision Name2: | Minas Gerais |
| Source1 Location: | Minas Gerais state |
| Mouth: | Grande River |
The São João River is a tributary of the Grande River in Minas Gerais state, southeastern Brazil.