| Official Name: | Radu-ye Pain |
| Native Name: | رادوپايين |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Sistan and Baluchestan |
| Subdivision Type2: | County |
| Subdivision Name2: | Chabahar |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Polan |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Polan |
| Population As Of: | 2006 |
| Population Total: | 121 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 25.6106°N 61.1283°W |
Radu-ye Pain (Persian: رادوپايين, also Romanized as Rādū-ye Pā’īn; also known as Rādān, Rādow, and Rādū) is a village in Polan Rural District, Polan District, Chabahar County, Sistan and Baluchestan Province, Iran. At the 2006 census, its population was 121, in 23 families.