| Official Name: | Kalestan-e Sofla |
| Native Name: | كلستان سفلي |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Ardabil |
| Subdivision Type2: | County |
| Subdivision Name2: | Khalkhal |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Sanjabad-e Sharqi |
| Population As Of: | 2006 |
| Population Total: | 261 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 37.7397°N 48.5442°W |
Kalestan-e Sofla (Persian: كلستان سفلي, also Romanized as Kalestān-e Soflá; also known as Golestān-e Pā’īn and Kyal’ston) is a village in Sanjabad-e Sharqi Rural District, in the Central District of Khalkhal County, Ardabil Province, Iran. At the 2006 census, its population was 261, in 63 families.