| Água Fria River | |
| Pushpin Map: | Brazil#South America |
| Source1 Location: | Tocantins state |
| Mouth: | Braço Menor do Rio Araguaia River |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
The Água Fria River is a river of Tocantins state in central Brazil. It is a tributary of the Braço Menor do Rio Araguaia River.