Hoseynabad-e GiyanHoseynabad-e Giyan is a village in Giyan Rural District of Giyan District, Nahavand County, Hamadan province, Iran.DemographicsPopulationAt the time of the 2006 National Census, the village's population was 728 in 227 households. The following census in 2011 counted 1,023 people in 297 households. The 2016 census measured the population of the village as 1,017 people in 305 households. It was the most populous village in its rural district.