Ab Gorg () is a village in Dughayi Rural District of Abkuh District in Quchan County, Razavi Khorasan province, Iran.
At the time of the 2006 National Census, the village's population was 445 in 106 households, when it was in Sudlaneh Rural District of the Central District. The following census in 2011 counted 316 people in 89 households. The 2016 census measured the population of the village as 287 people in 105 households.
In 2020, Ab Gorg was separated from the district in the formation of Abkuh District and transferred to Dughayi Rural District in the new district.