Dash Bolagh () is a village in Sain Qaleh Rural District of the Central District in Abhar County, Zanjan province, Iran.
At the time of the 2006 National Census, the village's population was 355 in 81 households. The following census in 2011 counted 317 people in 81 households. The 2016 census measured the population of the village as 193 people in 59 households.