Dom Rustan () is a village in Tarhan-e Sharqi Rural District of Tarhan District, Kuhdasht County, Lorestan province, Iran.
At the time of the 2006 National Census, the village's population was 1,568 in 309 households. The following census in 2011 counted 1,492 people in 345 households. The 2016 census measured the population of the village as 1,113 people in 288 households. It was the most populous village in its rural district.