Behdadin (Persian: بهدادين)[a] is a village in Bostan Rural District of Sangan District, Khaf County, Razavi Khorasan province, Iran.

At the time of the 2006 National Census, the village's population was 1,813 in 346 households.

[5] The 2016 census measured the population of the village as 2,470 people in 630 households.

It was the most populous village in its rural district.

This Khaf County location article is a stub.