| Official Name: | Basardilla |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain Castile and León#Spain |
| Pushpin Map Caption: | Location in Spain. |
| Subdivision Name3: | Basardilla |
| Area Total Km2: | 19.02 |
| Elevation M: | 1010 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Native Name: | Vasardilla |
| Native Name Lang: | Gacería |
Basardilla (historically and in gacería, Vasardilla) is a municipality located in the province of Segovia, Castile and León, Spain. The town's name has a Roman origin and means "Zarza Valley". It is located between Torrecaballeros and Brieva at an altitude of 1010 meters. According to the 2004 census (INE), the municipality had a population of 149 inhabitants.