| Official Name: | Seira |
| Area Total Km2: | 69.4 |
| Elevation M: | 810 |
| Population Demonym: | Seirano, Seirana |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
Seira (pronounced as /es/; pronounced as /ca/) is a municipality located in the Ribagorza comarca, province of Huesca, Aragon, Spain. According to the 2018 census the municipality has a population of 150 inhabitants.[1] Its postal code is 22463.
The town is located on the left side of the Ésera River in a very mountainous place.
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