| Acaray River | |
| Pushpin Map: | Paraguay |
| Pushpin Map Caption: | Mouth |
| Mouth Coordinates: | -25.4833°N -96°W |
| Subdivision Type1: | Country |
| Length: | 160km (100miles) |
| Source1 Elevation: | 220m (720feet) |
| Mouth Elevation: | NaNm (-2,147,483,648feet) |
The Acaray River (Guarani Akaray) is a river in eastern Paraguay. It is born in the Cordillera de Caaguazú, and is joined by the Yguazú and Itakyry rivers later on. The river flows through the Caaguazú and Alto Paraná Departments, and joins the Paraná River in an area between Ciudad del Este and Hernadarias, which was later modified for the construction of the Acaray Dam. One of its main tributaries is the Yguazú River, which also has its own dam: the Yguazú Dam.