Ain, Iran
Ain 
    آیین  | |
|---|---|
village  | |
| Coordinates: 36°27′42″N 50°24′27″E / 36.46167°N 50.40750°E | |
| Country | Iran | 
| Province | Qazvin | 
| County | Qazvin | 
| Bakhsh | Rudbar-e Alamut | 
| Rural District | Moallem Kalayeh | 
| Population  (2006)  | |
 • Total  | 13 | 
| Time zone | UTC+3:30 (IRST) | 
| • Summer (DST) | UTC+4:30 (IRDT) | 
Ain (Persian: آیین, also Romanized as Ā'īn) is a village in Moallem Kalayeh Rural District, Rudbar-e Alamut District, Qazvin County, Qazvin Province, Iran. At the 2006 census, the village population comprised 13 residents, in 4 households.