| Itaueira River | |
| Pushpin Map: | Brazil |
| River System: | Parnaíba River |
| Source1 Location: | Piauí state |
| Mouth Coordinates: | -6.6767°N -42.9253°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
The Itaueira River is a river of Piauí state in northeastern Brazil, a tributary of the Parnaíba River.
The river, which is intermittent, rises in the Serra das Confusões National Park, created in 1998, which protects an area of the Caatinga biome.