Samiabad-e Hajji Aman () is a village in Zam Rural District of Pain Jam District in Torbat-e Jam County, Razavi Khorasan province, Iran.
At the time of the 2006 National Census, the village's population was 266 in 60 households. The following census in 2011 counted 275 people in 65 households. The 2016 census measured the population of the village as 309 people in 82 households.