| Official Name: | Rahmatabad |
| Native Name: | رحمت اباد |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Razavi Khorasan |
| Subdivision Type2: | County |
| Subdivision Name2: | Sarakhs |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Marzdaran |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Marzdaran |
| Population As Of: | 2006 |
| Population Total: | 135 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 36.0239°N 60.7322°W |
Rahmatabad (fa|رحمت اباد, also Romanized as Raḩmatābād; also known as Qal‘eh Sangī, Qal‘eh Sangī-ye Raḩmatābād, and Sarsarī) is a village in Marzdaran Rural District, Marzdaran District, Sarakhs County, Razavi Khorasan Province, Iran. At the 2006 census, its population was 135, in 32 families.
This village is located 95 km southwest of Sarakhs city and next to Kashaf river. Its altitude is 695 meters above sea level and its climate is temperate and dry and located in the mountains.[1]
The people of this village are from the Shahsevan and Qashqai tribes who were forced to move to this area during the reign of Reza Shah due to fear of the Shahsevans taking power.