| Official Name: | Cheshmeh-ye Gav |
| Native Name: | چشمه گاو |
| 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: | Mud |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Naharjan |
| Population As Of: | 2006 |
| Population Total: | 47 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 32.5167°N 59.7167°W |
Cheshmeh-ye Gav (Persian: چشمه گاو, also Romanized as Cheshmeh-ye Gāv, Chashmeh Gav, and Chashmeh-i-Gav) is a village in Naharjan Rural District, Mud District, Sarbisheh County, South Khorasan Province, Iran. According to the 2006 census, it had a population of 47 in 15 families.