Qezel Hesar (Persian: قزل حصار, romanized: 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.