| Official Name: | Qezel Hesar |
| Native Name: | قزل حصار |
| Settlement Type: | Village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Alborz |
| Subdivision Type2: | County |
| Subdivision Name2: | Nazarabad |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Najmabad |
| Population As Of: | 2006 |
| Population Total: | 38 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Coordinates: | 35.9103°N 50.5364°W |
| Native Name Lang: | fa |
Qezel Hesar (Persian: قزل حصار|translit=Qezel Ḩeşār, Ghezel Ḩeşār, or Qizil Hisār); also known as Qal‘eh-ye Qezel Ḩeşār, is a village in Najmabad Rural District, in the Central District of Nazarabad County, Alborz Province, Iran. At the 2006 census, its population was 38, in 10 families.