| Official Name: | Dadin-e Sofla |
| Native Name: | دادين سفلي |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Fars |
| Subdivision Type2: | County |
| Subdivision Name2: | Kazerun |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Jereh and Baladeh |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Dadin |
| Population As Of: | 2006 |
| Population Total: | 466 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 29.3822°N 51.7972°W |
Dadin-e Sofla (Persian: دادين سفلي, also Romanized as Dādīn-e Soflá; also known as Dādīn-e Pā’īn and Dīn ol Ḩadar) is a village in Dadin Rural District, Jereh and Baladeh District, Kazerun County, Fars Province, Iran. At the 2006 census, its population was 466, in 95 families.