| Official Name: | Khvan |
| Native Name: | خوان |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | South Khorasan |
| Subdivision Type2: | County |
| Subdivision Name2: | Darmian |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Qohestan |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Qohestan |
| Population As Of: | 2006 |
| Population Total: | 375 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 33.2578°N 59.7144°W |
Khvan (Persian: خوان, also Romanized as Khvān; also known as Khūy and Kūh) is a village in Qohestan Rural District, Qohestan District, Darmian County, South Khorasan Province, Iran. At the 2006 census, its population was 375, in 126 families.