| Official Name: | Cástaras |
| Subdivision Name2: | Cástaras |
| Area Total Km2: | 28 |
| Elevation M: | 1.011 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Latitude: | 36º56' N |
| Longitude: | 3º15' W |
Cástaras is a municipality located in the province of Granada, Spain. According to the 2005 census (INE), the city has a population of 251 inhabitants.