| Official Name: | Mazhnabad |
| Native Name: | مژن اباد |
| 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: | 1,854 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 34.1131°N 60.0958°W |
Mazhnabad (Persian: مژن اباد, also Romanized as Mazhnābād, Majnābād, Mazhan Abad, and Mozhnābād; also known as Mijnābād) is a village in Bostan Rural District, Sangan District, Khaf County, Razavi Khorasan Province, Iran. At the 2006 census, its population was 1,854, in 371 families.