| Official Name: | Aïn Bya |
| Native Name: | عين البية |
| Settlement Type: | Commune and town |
| Mapsize: | 180px |
| Pushpin Map: | Algeria |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: |  Algeria |
| Subdivision Name1: | Oran Province |
| Subdivision Type2: | District |
| Subdivision Name2: | Bethioua District |
| Unit Pref: | Imperial |
| Area Total Km2: | 36.15 |
| Population As Of: | 2009 |
| Population Total: | 32611 |
| Utc Offset: | +1 |
| Coordinates: | 35.8167°N -0.2833°W |
Aïn Bya is a town and commune in Oran Province, Algeria. According to the 1998 census it has a population of 26,253.[1]