| Official Name: | Biatan-e Sofla |
| Native Name: | بياتان سفلي |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Hamadan |
| Subdivision Type2: | County |
| Subdivision Name2: | Malayer |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Zand |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Kamazan-e Sofla |
| Population As Of: | 2006 |
| Population Total: | 46 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 34.0253°N 48.9581°W |
Biatan-e Sofla (fa|بياتان سفلي, also Romanized as Bīātān-e Soflá, Bayātān-e Soflá, Bayatan Sofla; also known as Bayātān-e Pā’īn, Beyātān-e Pā’īn, and Bīātān) is a village in Kamazan-e Sofla Rural District, Zand District, Malayer County, Hamadan Province, Iran. At the 2006 census, its population was 46, in 14 families.