Hasanabad Rural District () is in Fashapuyeh District of Ray County, Tehran province, Iran.
At the time of the 2006 National Census, the rural district's population was 5,033 in 1,390 households. There were 4,909 inhabitants in 1,584 households at the following census of 2011. The 2016 census measured the population of the rural district as 2,777 in 903 households. The most populous of its 18 villages was Shamsabad, with 1,464 people.