Dash Bolagh () is a village in Qareh Poshtelu-e Pain Rural District of Qareh Poshtelu District in Zanjan County, Zanjan province, Iran.
At the time of the 2006 National Census, the village's population was 103 in 24 households. The following census in 2011 counted 72 people in 22 households. The 2016 census measured the population of the village as 52 people in 19 households.