Tarhan District (Persian: بخش طرهان) is in Kuhdasht County, Lorestan province, Iran.

[3] At the time of the 2006 National Census, the district's population was 17,648 in 3,458 households.

[4] The following census in 2011 counted 16,101 people in 3,766 households.

[5] The 2016 census measured the population of the district as 12,730 inhabitants in 3,513 households.

This Kuhdasht County location article is a stub.