Tarhan-e Gharbi Rural District
Tarhan-e Gharbi Rural District () is in Tarhan District of Kuhdasht County, Lorestan province, Iran. Its capital is the village of Chapit-e Sofla.

At the National Census of 2006, its population was 8,847 in 1,703 households. There were 7,807 inhabitants in 1,756 households at the following census of 2011. At the most recent census of 2016, the population of the rural district was 5,526 in 1,465 households. The most populous of its 27 villages was Cheshmeh Sefid, with 761 people.

References 

Rural Districts of Lorestan Province

Populated places in Kuhdasht County