| Official Name: | Kahn-e Pain |
| Native Name: | کهن پايين |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Sistan and Baluchestan |
| Subdivision Type2: | County |
| Subdivision Name2: | Qasr-e Qand |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Talang |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Talang |
| Population As Of: | 2006 |
| Population Total: | 215 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 26.0033°N 60.9275°W |
Kahn-e Pain (Persian: کهن پايين, also Romanized as Kahn-e Pā’īn and Kohan-e Pā’īn; also known as Kahan, Kahan Barānī, Kahn, Kahnak, Kahn Balūchānī, Khān, Kohan Balūchānī, Kohan Balūchī, Kohan Barātī, and Ūshāb) is a village in Talang Rural District, Talang District, Qasr-e Qand County, Sistan and Baluchestan Province, Iran. At the 2006 census, its population was 215, in 50 families.