Chehel Hesar (, also Romanized as Chehel Ḩeşār) is a village in Zorqabad Rural District of the Central District of Esfarayen County, North Khorasan province, Iran.

At the 2006 National Census, its population was 1,396 in 321 households. The following census in 2011 counted 1,374 people in 382 households. The latest census in 2016 showed a population of 1,143 people in 344 households; it was the largest village in its rural district.

References 

Esfarayen County

Populated places in North Khorasan Province

Populated places in Esfarayen County