| Official Name: | Hoseynabad |
| Native Name: | حسين اباد |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Hamadan |
| Subdivision Type2: | County |
| Subdivision Name2: | Nahavand |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Gamasiyab |
| Population As Of: | 2006 |
| Population Total: | 404 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 34.09°N 48.4697°W |
Hoseynabad (Persian: حسين اباد, also Romanized as Ḩoseynābād; also known as Husainābād) is a village in Gamasiyab Rural District, in the Central District of Nahavand County, Hamadan Province, Iran. At the 2006 census, its population was 404, in 111 families.