Cheshmeh Mantash () is a village in Khosrowabad Rural District of Chang Almas District, Bijar County, Kurdistan province, Iran.
The village is populated by Kurds.
At the time of the 2006 National Census, the village's population was 1,012 in 228 households. The following census in 2011 counted 936 people in 275 households. The 2016 census measured the population of the village as 876 people in 250 households. It was the most populous village in its rural district.