| Official Name: | Sadr ol Din |
| Native Name: | صدرالدين |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | West Azerbaijan |
| Subdivision Type2: | County |
| Subdivision Name2: | Chaldoran |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Chaldoran-e Shomali |
| Population As Of: | 2006 |
| Population Total: | 69 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 39.1197°N 44.3775°W |
Sadr ol Din (fa|صدرالدين, also Romanized as Şadr ol Dīn and Şadr od Dīn) is a village in Chaldoran-e Shomali Rural District, in the Central District of Chaldoran County, West Azerbaijan Province, Iran. At the 2006 census, its population was 69, in 14 families.