Aq Kamar-e Sofla () is a village in Balaband Rural District of the Central District in Fariman County, Razavi Khorasan province, Iran.
At the time of the 2006 National Census, the village's population was 431 in 97 households. The following census in 2011 counted 374 people in 99 households. The 2016 census measured the population of the village as 347 people in 97 households.