| Official Name: | Darband-e Sofla |
| Native Name: | دربندسفلي |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Razavi Khorasan |
| Subdivision Type2: | County |
| Subdivision Name2: | Sarakhs |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Marzdaran |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Marzdaran |
| Population As Of: | 2006 |
| Population Total: | 58 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 35.9833°N 60.85°W |
Darband-e Sofla (fa|دربندسفلي, also Romanized as Darband-e Soflá; also known as Āq Darband) is a village in Marzdaran Rural District, Marzdaran District, Sarakhs County, Razavi Khorasan Province, Iran. At the 2006 census, the population was 58, in 18 families.