| Barrio de la Tercia | |
| Settlement Type: | Minor local entity |
| Pushpin Map: | Spain Province of León#Spain Castile and León#Spain |
| Pushpin Label: | Barrio de la Tercia |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Type1: | Autonomous community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Province of León |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Villamanín |
| Population Total: | 14 |
| Coordinates: | 42.9536°N -5.6364°W[1] |
| Elevation M: | 1220 |
| Postal Code Type: | Postal code |
Barrio de la Tercia is a locality and minor local entity located in the municipality of Villamanín, in León province, Castile and León, Spain. As of 2020, it has a population of 14.[2]
Barrio de la Tercia is located 51km north of León, Spain.