Mohammadabad () is a village in Estarabad Rural District of Kamalan District in Aliabad-e Katul County, Golestan province, Iran.
At the time of the 2006 National Census, the village's population was 1,841 in 453 households. The following census in 2011 counted 1,826 people in 522 households. The 2016 census measured the population of the village as 1,683 people in 544 households.