| Official Name: | Heydarabad-e Sofla |
| Native Name: | حيدراباد سفلي |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Kohgiluyeh and Boyer-Ahmad |
| Subdivision Type2: | County |
| Subdivision Name2: | Boyer-Ahmad |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Ludab |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Ludab |
| Population As Of: | 2006 |
| Population Total: | 426 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 30.9272°N 50.9069°W |
Heydarabad-e Sofla (Persian: حيدراباد سفلي, also Romanized as Ḩeydarābād-e Soflá; also known as Ḩeydarābād) is a village in Ludab Rural District, Ludab District, Boyer-Ahmad County, Kohgiluyeh and Boyer-Ahmad Province, Iran. At the 2006 census, its population was 426, in 97 families.