| Official Name: | Hoseynabad-l-pain'khaf |
| Native Name: | حسین آباد |
| Native Name Lang: | fa |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Razavi Khorasan |
| Subdivision Type2: | County |
| Subdivision Name2: | Khaf |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Sangan |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Bostan |
| Population As Of: | 2006 |
| Population Total: | 953 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 34.1314°N 60.1172°W |
Hoseynabad l pain'khaf (Persian: حسين آباد , also Romanized as Ḩoseynābād) is a village in Bostan Rural District, Sangan District, Khaf County, Razavi Khorasan Province, Iran. At the 2020census, its population wa3500, in 450 families.