Kalayen () is a village in Atrak Rural District of the Central District in Maneh County, North Khorasan province, Iran.
At the time of the 2006 National Census, the village's population was 195 in 42 households, when it was in Maneh District of Maneh and Samalqan County. The following census in 2011 counted 129 people in 33 households. The 2016 census measured the population of the village as 141 people in 37 households.
In 2023, the district was separated from the county in the establishment of Maneh County and renamed the Central District.