Qalandarabad District () is in Fariman County, Razavi Khorasan province, Iran. Its capital is the city of Qalandarabad.
At the time of the 2006 National Census, the district's population was 22,734 in 5,243 households. The following census in 2011 counted 23,761 people in 6,312 households. The 2016 census measured the population of the district as 25,361 inhabitants in 7,119 households.