| Official Name: | Kahnan-e Sarney |
| Native Name: | كهنان سرني |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Hormozgan |
| Subdivision Type2: | County |
| Subdivision Name2: | Minab |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Tukahur |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Tukahur |
| Population As Of: | 2006 |
| Population Total: | 1,144 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 27.0786°N 57.3633°W |
Kahnan-e Sarney (Persian: كهنان سرني, also Romanized as Kahnān-e Sarney, Kahanān Sarney, Kahnān-e Sarnī, and Kahnān-e Sorney) is a village in Tukahur Rural District, Tukahur District, Minab County, Hormozgan Province, Iran. At the 2006 census, its population was 1,144, in 263 families.