| Official Name: | Kahn-e Mahalleh-ye Pain |
| Native Name: | كهن محله پايين |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Kerman |
| Subdivision Type2: | County |
| Subdivision Name2: | Narmashir |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Rud Ab |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Rud Ab-e Sharqi |
| Population As Of: | 2006 |
| Population Total: | 234 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 28.8833°N 58.5167°W |
Kahn-e Mahalleh-ye Pain (Persian: كهن محله پايين, also Romanized as Kahn-e Maḩalleh-ye Pā’īn) is a village in Rud Ab-e Sharqi Rural District, Rud Ab District, Narmashir County, Kerman Province, Iran. At the 2006 census, its population was 234, in 47 families.