| Castilsabás | |
| Settlement Type: | Locality |
| Pushpin Map: |
|
| Pushpin Label: | Castilsabás |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Type1: | Autonomous community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Province of Huesca |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Loporzano |
| Population Total: | 21 |
| Coordinates: | 42.1958°N -0.3047°W[1] |
| Elevation M: | 733 |
| Postal Code Type: | Postal code |
Castilsabás is a locality located in the municipality of Loporzano, in Huesca province, Aragon, Spain. As of 2020, it has a population of 21.[2]
Castilsabás is located 21km northeast of Huesca.