| Official Name: | Aliabad-e Kahak |
| Native Name: | علي ابادكهك |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | South Khorasan |
| Subdivision Type2: | County |
| Subdivision Name2: | Sarbisheh |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Momenabad |
| Population As Of: | 2006 |
| Population Total: | 61 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 32.6736°N 59.6842°W |
Aliabad-e Kahak (Persian: علي ابادكهك, also Romanized as ‘Alīābād-e Kahak; also known as ‘Alīābād , ‘Alīābād-e Kahak Rūd, ‘Alīābād-e Sar Bīsheh, and Ali Abad Mo’men Abad) is a village in Momenabad Rural District, in the Central District of Sarbisheh County, South Khorasan Province, Iran. According to the 2006 census, it had a population of 61, residing in 12 families.