| Official Name: | Sarab-e Sofla |
| Native Name: | سراب سفلي |
| Settlement Type: | village |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | South Khorasan |
| Subdivision Type2: | County |
| Subdivision Name2: | Darmian |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Qohestan |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Qohestan |
| Population As Of: | 2006 |
| Population Total: | 276 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
Sarab-e Sofla (Persian: سراب سفلي, also Romanized as Sarāb-e Soflá) is a village in Qohestan Rural District, Qohestan District, Darmian County, South Khorasan Province, Iran. At the 2006 census, its population was 276, in 87 families.