Dustabad (Persian: دوست اباد)[a] is a village in Seh Qaleh Rural District of Seh Qaleh District, Sarayan County, South Khorasan province, Iran.

At the time of the 2006 National Census, the village's population was 1,627 in 356 households.

[5] The 2016 census measured the population of the village as 1,690 people in 494 households.

It was the most populous village in its rural district.

This Sarayan County location article is a stub.