| Official Name: | Zarnukh |
| Native Name: | زرنوخ |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Razavi Khorasan |
| Subdivision Type2: | County |
| Subdivision Name2: | Mahvelat |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Shadmehr |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Azghand |
| Population As Of: | 2006 |
| Population Total: | 101 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 35.1308°N 59.0328°W |
Zarnukh (Persian: زرنوخ, also Romanized as Zarnūkh; also known as Jīnūk and Jūnūq) is a village in Azghand Rural District, Shadmehr District, Mahvelat County, Razavi Khorasan Province, Iran. At the 2006 census, its population was 101, in 27 families.