| Official Name: | Esfin |
| Native Name: | اسفين |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Markazi |
| Subdivision Type2: | County |
| Subdivision Name2: | Farahan |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Farmahin |
| Population As Of: | 2006 |
| Population Total: | 128 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 34.5719°N 49.6286°W |
Esfin (Persian: اسفين, also Romanized as Esfīn) is a village in Farmahin Rural District, in the Central District of Farahan County, Markazi Province, Iran. At the 2006 census, its population was 128, in 39 families.