Mohammadabad () is a village in Sadan Rostaq-e Sharqi Rural District of the Central District in Kordkuy County, Golestan province, Iran.
At the time of the 2006 National Census, the village's population was 409 in 93 households. The following census in 2011 counted 462 people in 125 households. The 2016 census measured the population of the village as 490 people in 148 households.