| Official Name: | Orós Bajo |
| Other Name: | Orós Baxo |
| Settlement Type: | Population unit |
| Population Total: | 22 |
| Population As Of: | 2019 |
| Subdivision Name: | Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Name1: | Aragon |
| Subdivision Type2: | Province |
| Subdivision Name2: | Huesca |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Biescas |
| Coordinates: | 42.5919°N -0.31°W |
| Pushpin Map: | Spain |
Orós Bajo (Aragonese: Orós Baxo)[1] is a population unit situated in the municipality of Biescas, Spain. In 2019, it had a population of 22 inhabitants.[2]
The church of Saint Eulalia forms part of the Serrablo churches, a group of early-romanesque and mozarabic churches.