Hoseynabad () is a village in Bostan Rural District of Sangan District in Khaf County, Razavi Khorasan province, Iran.
At the time of the 2006 National Census, the village's population was 953 in 196 households. The following census in 2011 counted 1,176 people in 244 households. The 2016 census measured the population of the village as 1,315 people in 293 households.