| Timbuí River | |
| Source1 Location: | Espírito Santo state |
| Mouth: | Reis Magos River |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
The Timbuí River is a river of Espírito Santo state in eastern Brazil.
Part of the river basin is contained in the Augusto Ruschi Biological Reserve, a fully protected area.