Aïn Defla Province
| Aïn Defla Province ولاية عين الدفلى | |
|---|---|
| Map of Algeria highlighting Aïn Defla | |
| Coordinates: 36°19′N 2°10′E / 36.317°N 2.167°E | |
| Country | Algeria | 
| Capital | Aïn Defla | 
| Government | |
| • PPA president | Mr. Menad Mehdi (FLN) | 
| • Wāli | Mr. Tikhmarine Lakhdar | 
| Area | |
|  • Total | 4,897 km2 (1,891 sq mi) | 
| Population  (2008) | |
|  • Total | 771,890 | 
| • Density | 160/km2 (410/sq mi) | 
| Time zone | UTC+01 (CET) | 
| Area code | +213 (0) 27 | 
| ISO 3166 code | DZ-44 | 
| Districts | 14 | 
| Municipalities | 36 | 
Aïn Defla (Arabic: ولاية عين الدفلى, is a wilaya (province) in northern Algeria. It is located to the southwest of Algiers, the capital. Localities in Ain Delfa include Aïn Defla, Miliana, El Attaf, Djelida and Djendel.