| Official Name: | Hesar |
| Native Name: | حصار |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Razavi Khorasan |
| Subdivision Type2: | County |
| Subdivision Name2: | Nishapur |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Zeberkhan |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Zeberkhan |
| Population As Of: | 2006 |
| Population Total: | 853 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 36.0456°N 59.2422°W |
Hesar (Persian: حصار, also Romanized as Ḩeşār; also known as Ḩeşār-e Ardovey and Ḩeşār-e Ardovī) is a village in Zeberkhan Rural District, Zeberkhan District, Nishapur County, Razavi Khorasan Province, Iran. At the 2006 census, its population was 853, in 233 families.