Baghak () is a village in Marzdaran Rural District of Marzdaran District in Sarakhs County, Razavi Khorasan province, Iran.
At the time of the 2006 National Census, the village's population was 235 in 58 households. The following census in 2011 counted 228 people in 55 households. The 2016 census measured the population of the village as 249 people in 64 households.