Qarah Boltaq (Persian: قره بلطاق)[a] is a village in, and the capital of, Sardsir Rural District[4] of the Central District of Buin Miandasht County, Isfahan province, Iran.

At the time of the 2006 National Census, the village's population was 698 in 190 households, when it was in the former Buin Miandasht District of Faridan County.

[6] The 2016 census measured the population of the village as 553 people in 208 households, by which time the district had been separated from the county in the establishment of Buin Miandasht County.

[7] It was the most populous village in its rural district.

This Buin va Miandasht County location article is a stub.