| Novo River | |
| Name Other: | Rio Novo |
| Pushpin Map: | Brazil |
| River System: | Do Sono River |
| Source1 Location: | Mateiros, Tocantins |
| Source1 Coordinates: | -10.7951°N -46.3306°W |
| Mouth Location: | Do Sono River |
| Mouth Coordinates: | -10.1825°N -46.9356°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
The Novo River is a river of Tocantins state, Brazil. It is a headwater of the Do Sono River.
The river forms to the south of the Jalapão State Park, a fully protected conservation unit created in 2001.It runs north along the west boundary of the park to the point where it meets the Soninho River from the left to form the Do Sono River.