| Official Name: | Riachuelo |
| Subdivision Type: | Region |
| Subdivision Name: | Los Lagos |
| Subdivision Type1: | Province |
| Subdivision Name1: | Osorno |
| Subdivision Type2: | Municipalidad |
| Subdivision Name2: | Río Negro |
| Subdivision Type3: | Comuna |
| Subdivision Name3: | Río Negro |
| Government Type: | Municipalidad |
| Leader Title: | Alcalde |
| Leader Name: | Carlos Schwalm Urzúa |
| Population As Of: | 2017 census http://www.ine.cl/canales/chile_estadistico/demografia_y_vitales/demografia/demografia.php |
| Population Total: | 801 |
| Timezone: | Chilean Standard |
| Utc Offset: | −04:00 |
| Timezone Dst: | Chilean Daylight |
| Utc Offset Dst: | −03:00 |
| Coordinates: | -40.8195°N -73.3387°W |
| Elevation M: | 90 |
| Area Code: | Country + town = 56 + 64 |
Riachuelo is a village west of the town of Río Negro in south-central Chile. It lies along to Chile Route U-72. It had 801 inhabitants as of 2017.[1]