Cheshmeh Sefid () is a village in Tarhan-e Gharbi Rural District of Tarhan District, Kuhdasht County, Lorestan province, Iran.
At the time of the 2006 National Census, the village's population was 1,376 in 252 households. The following census in 2011 counted 1,146 people in 254 households. The 2016 census measured the population of the village as 761 people in 188 households. It was the most populous village in its rural district.