Kuchek Astajiq () is a village in Katul Rural District of the Central District in Aliabad-e Katul County, Golestan province, Iran.
At the time of the 2006 National Census, the village's population was 2,086 in 441 households. The following census in 2011 counted 2,338 people in 582 households. The 2016 census measured the population of the village as 2,320 people in 676 households.