| Official Name: | Harunabad-e Sofla |
| Native Name: | هارون ابادسفلي |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Zanjan |
| Subdivision Type2: | County |
| Subdivision Name2: | Tarom |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Ab Bar |
| Population As Of: | 2006 |
| Population Total: | 554 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 36.9094°N 48.9097°W |
Harunabad-e Sofla (Persian: هارون ابادسفلي, also Romanized as Hārūnābād-e Soflá; also known as Hārūnābād, Hārūnābād-e Pā’īn, and Kharnabad) is a village in Ab Bar Rural District, in the Central District of Tarom County, Zanjan Province, Iran. At the 2006 census, its population was 554, in 123 families.