Khvajeh Gerdab () is a village in Radkan Rural District of Radkan District in Chenaran County, Razavi Khorasan province, Iran.
The village did not appear in the 2006 National Census, when it was in the Central District. The following census in 2011 counted 30 people in eight households. The 2016 census measured the population of the village as 41 people in 14 households.
In 2020, the rural district was separated from the district in the formation of Radkan District.