Pustin Duz () 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 161 in 34 households, when it was in Maneh District of Maneh and Samalqan County. The following census in 2011 counted 111 people in 31 households. The 2016 census measured the population of the village as 117 people in 35 households.
In 2023, the district was separated from the county in the establishment of Maneh County and renamed the Central District.