| Official Name: | Hesar-e Sofla |
| Native Name: | حصارسفلي |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | West Azerbaijan |
| Subdivision Type2: | County |
| Subdivision Name2: | Khoy |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Rahal |
| Population As Of: | 2006 |
| Population Total: | 202 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 38.4703°N 44.8564°W |
Hesar-e Sofla (Persian: حصارسفلي, also Romanized as Ḩeşār-e Soflá; also known as Ḩeşār-e Pā'īn) is a village in Rahal Rural District, in the Central District of Khoy County, West Azerbaijan Province, Iran. At the 2006 census, its population was 202, in 46 families.