| Settlement Type: | municipality |
| Official Name: | Aísa |
| Flag Size: | 150 |
| Subdivision Type: | Country |
| Subdivision Name: | Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Name1: | Aragon |
| Subdivision Type2: | Province |
| Subdivision Name2: | Huesca |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Jacetania |
| Area Total Km2: | 80.91 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Pushpin Map: | Spain Aragon#Spain |
| Coordinates: | 42.6828°N -0.6169°W |
Aísa is a town and municipality located in the province of Huesca, Aragon, Spain. According to the 2009 census (INE), the municipality had a population of 394 residents. The municipality includes the towns of Candanchú, Esposa and Sinués.