| Sar Mastan Rural District | |
| Native Name: | fa|دهستان سرمستان |
| Settlement Type: | Rural District |
| Pushpin Map: | Iran |
| Coordinates: | 28.0464°N 51.8944°W |
| Coordinates Footnotes: | [1] |
| Subdivision Type: | Country |
| Subdivision Name: | Iran |
| Subdivision Type1: | Province |
| Subdivision Name1: | Bushehr |
| Subdivision Type2: | County |
| Subdivision Name2: | Deyr |
| Subdivision Type3: | District |
| Subdivision Name3: | Abdan |
| Seat Type: | Capital |
| Seat: | Sar Mastan |
| Population Total: | 748 |
| Population As Of: | 2016 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
Sar Mastan Rural District (fa|دهستان سرمستان) is in Abdan District of Deyr County, Bushehr province, Iran. Its capital is the village of Sar Mastan.[2]
After the 2011 National Census Abdan Rural District and the city of Abdan were separated from the Central District in the establishment of Abdan District. Sar Mastan Rural District was created in the new district.[2]
At the time of the 2016 census, the rural district's population was 748 in 212 households. The most populous of its 10 villages was Sar Mastan, with 468 people.[3]