Shirabad () is a village in Howmeh Rural District of the Central District in Samalqan County, North Khorasan province, Iran.
At the time of the 2006 National Census, the village's population was 774 in 204 households. The following census in 2011 counted 944 people in 261 households. The 2016 census measured the population of the village as 733 people in 225 households.