| Arjestan Rural District | |
| Native Name: | fa|دهستان ارجستان |
| Settlement Type: | Rural District |
| Pushpin Map: | Iran |
| Coordinates: | 38.2269°N 48.0031°W |
| Coordinates Footnotes: | [1] |
| Subdivision Type: | Country |
| Subdivision Name: | Iran |
| Subdivision Type1: | Province |
| Subdivision Name1: | Ardabil |
| Subdivision Type2: | County |
| Subdivision Name2: | Sareyn |
| Subdivision Type3: | District |
| Subdivision Name3: | Sabalan |
| Seat Type: | Capital |
| Seat: | Atashgah |
| Population Total: | 3097 |
| Population As Of: | 2016 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
Arjestan Rural District (fa|دهستان ارجستان) is in Sabalan District of Sareyn County, Ardabil province, Iran. Its capital is the village of Atashgah.[2]
In 2009, Sareyn District was separated from Ardabil County in the establishment of Sareyn County, which was divided into two districts of two rural districts each, with Sareyn as its capital and only city at the time. Arjestan Rural District was created in the new Sabalan District.[2]
At the time of the 2011 National Census, the rural district's population was 3,269 inhabitants in 941 households.[3] The 2016 census measured the population of the rural district as 3,097 in 899 households. The most populous of its eight villages was Sain, with 947 people.[4]