Mirahjin () is a village in Khvoresh Rostam-e Shomali Rural District of Khvoresh Rostam District in Khalkhal County, Ardabil province, Iran.
At the time of the 2006 National Census, the village's population was 176 in 44 households. The following census in 2011 counted 109 people in 37 households. The 2016 census measured the population of the village as 93 people in 31 households.