| Official Name: | Kalateh-ye Fathallah |
| Native Name: | كلاته فتح اله |
| Settlement Type: | village |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | North Khorasan |
| Subdivision Type2: | County |
| Subdivision Name2: | Maneh and Samalqan |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Maneh |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Shirin Su |
| Population As Of: | 2006 |
| Population Total: | 371 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
Kalateh-ye Fathallah (Persian: كلاته فتح اله, also Romanized as Kalāteh-ye Fatḥāllah) is a village in Shirin Su Rural District, Maneh District, Maneh and Samalqan County, North Khorasan Province, Iran. At the 2006 census, its population was 371, in 81 families.