| Kheyrabad-e Pain | |
| Native Name: | Persian: خيرآباد پايين |
| Native Name Lang: | fa |
| Settlement Type: | Village |
| Pushpin Map: | Iran |
| Coordinates Footnotes: | [1] |
| Subdivision Type: | Country |
| Subdivision Name: | Iran |
| Subdivision Type1: | Province |
| Subdivision Name1: | Tehran |
| Subdivision Type2: | County |
| Subdivision Name2: | Baharestan |
| Subdivision Type3: | District |
| Subdivision Name3: | Bostan |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Hamedanak |
| Unit Pref: | Metric |
| Population As Of: | 2016 |
| Population Total: | 417 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
Kheyrabad-e Pain (Persian: خيرآباد پايين) is a village in Hamedanak Rural District of Bostan District of Baharestan County, Tehran province, Iran.
After the 2006 National Census, Bostan and Golestan Districts (except the city of Nasirshahr) were separated from Robat Karim County in the establishment of Baharestan County, which was divided into two districts of two rural districts each, with the cities of Golestan and Nasimshahr as its capitals.[2]
At the time of the 2016 National Census, the village's population was 417 people in 121 households. It was the least populous of the three villages in its rural district.[3]