| Belo River | |
| Source1 Location: | Paraná state |
| Mouth: | Ivaí River |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
The Belo River is a river of Paraná state in southeastern Brazil. Formed by the merger of the Marrecas and São Francisco rivers, and flowing into the Ivaí River, it is only about 5km long.