Aïn Defla
| Aïn Defla عين الدفلى | |
|---|---|
| Commune of Aïn Defla | |
| Location of Aïn Delfa within Aïn Delfa Province | |
| Coordinates: 36°15′55″N 1°58′13″E / 36.2652°N 1.9703°E | |
| Country | Algeria | 
| Province | Aïn Defla (seat) | 
| District | Aïn Defla (coextensive) | 
| Government | |
| • PMA Seats | 11 | 
| Elevation | 980 m (3,220 ft) | 
| Population  (2008) | |
|  • Total | 65,453 | 
| Time zone | UTC+01 (CET) | 
| Postal code | 44000 | 
| ONS code | 4401 | 
| Climate | Csa | 
Aïn Defla (Arabic: عين الدفلى, lit. oleander spring) is the capital city of Aïn Defla Province, Algeria. It is also a commune.