Hesar-e Devin () is a village in Howmeh Rural District of the Central District in Shirvan County, North Khorasan province, Iran.
At the time of the 2006 National Census, the village's population was 433 in 117 households. The following census in 2011 counted 327 people in 110 households. The 2016 census measured the population of the village as 230 people in 89 households.