| Tijuco River | |
| Source1 Location: | Minas Gerais state |
| Mouth Location: | Paranaíba River |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
The Tijuco River (Portuguese, Rio Tijuco) is a river of Minas Gerais state in southeastern Brazil. Geologically, the Tijuco River basin is inserted in the plateau unit of Central Brazil, in a geotectonic sedimentary basin called Paraná Sedimentary Basin.
It is a tributary of the Paranaíba River, which it joins in the reservoir created by São Simão Dam.