Bagh Baghu () 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 314 in 68 households. The following census in 2011 counted 258 people in 69 households. The 2016 census measured the population of the village as 238 people in 64 households.