| Settlement Type: | municipality |
| Official Name: | Banastás |
| Flag Size: | 150 |
| Pushpin Map: | Spain |
| Pushpin Map Caption: | Location in Spain |
| Coordinates: | 42.1833°N -27°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Huesca |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Hoya de Huesca |
| Area Total Km2: | 4.66 |
| Elevation M: | 532 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Leader Title: | Mayor |
| Leader Name: | Ángel Gracia Banzo |
| Leader Party: | People's Party of Aragon |
| Postal Code: | 22194 |
Banastás is a municipality in the province of Huesca, Spain. As of 2016, it has a population of 297 inhabitants.