| Hoseynabad | |
| Native Name: | fa|حسين اباد |
| Native Name Lang: | fa |
| Settlement Type: | Village |
| Pushpin Map: | Iran |
| Coordinates Footnotes: | [1] |
| Subdivision Type: | Country |
| Subdivision Name: | Iran |
| Subdivision Type1: | Province |
| Subdivision Name1: | Markazi |
| Subdivision Type2: | County |
| Subdivision Name2: | Shazand |
| Subdivision Type3: | District |
| Subdivision Name3: | Qarah Kahriz |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Kuhsar |
| Unit Pref: | Metric |
| Population As Of: | 2016 |
| Population Total: | 400 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
Hoseynabad (fa|حسين اباد) is a village in Kuhsar Rural District of Qarah Kahriz District, Shazand County, Markazi province, Iran.
At the time of the 2006 National Census, the village's population was 482 in 112 households, when it was in the Central District.[2] The following census in 2011 counted 411 people in 128 households,[3] by which time the rural district had been separated from the district in the establishment of Qarah Kahriz District. The 2016 census measured the population of the village as 400 people in 133 households. It was the most populous village in its rural district.[4]