| Official Name: | Alerta |
| Native Name: | Alerta |
| Seal Size: | 100px |
| Pushpin Map: | Peru |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Madre de Dios Region |
| Subdivision Type2: | Province |
| Subdivision Name2: | Tahuamanu Province |
| Subdivision Type3: | District |
| Subdivision Name3: | Tahuamanu District |
| Settlement Type: | Town |
| Coordinates: | -11.6667°N -82°W |
Alerta is a city in the Madre de Dios Region of Peru. It is located very close to the border with Bolivia. It is located 696 km (435 mi) from the region's capital, Pucallpa.
It is served by the Alerta Airport.