| El Oso | |
| Settlement Type: | Municipality and Town |
| Pushpin Map: | Spain Castile and León#Spain |
| Pushpin Map Caption: | Location in Spain. |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | El Oso |
| Leader Title: | Alcalde (Mayor) |
| Leader Name: | Luciano Arroyo Martín |
| Leader Party: | PSOE |
| Area Total Km2: | 18.49 |
| Elevation M: | 893 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
El Oso is a municipality (pop. 229) in the Spanish province of Ávila, in the autonomous community of Castile-Leon.
The village takes its name (which means "the bear") from a megalithic monument outside the church. The monument in question may not have been intended to represent a bear. It is classed as a Verraco, a type of prehistoric monument found in central Spain, which shares its name with the Spanish word for a boar. Local legend identifies this example as a bear.