| Image Skyline Size: | 250px |
| Subdivision Type2: | Province |
| Subdivision Name4: | Longás |
| Area Total Km2: | 49 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Pushpin Map: | Spain Aragon#Spain#Europe |
| Coordinates: | 42.4667°N -56°W |
Longás (in Aragonese: Longars) is a municipality located in the Cinco Villas comarca, province of Zaragoza, Aragon, Spain. According to the 2023 census (INE), the municipality has a population of 44 inhabitants.