| Rio dos Bois | |
| Source1 Location: | Goiás state |
| Mouth Coordinates: | -18.592°N -50.031°W |
| Subdivision Type1: | Country |
The Rio dos Bois is a river of Goiás state in central Brazil. It flows into the São Simão reservoir, which is fed and drained by the Paranaíba River, near Inaciolândia.