Masjed Abu ol Fazl () is a village in, and the capital of, Abreis Rural District of Bazman District, Iranshahr County, Sistan and Baluchestan province, Iran.
At the time of the 2006 National Census, the village's population was 320 in 68 households. The following census in 2011 counted 518 people in 119 households. The 2016 census measured the population of the village as 258 people in 69 households. It was the most populous village in its rural district.