| Official Name: | Atolen |
| Native Name: | اتلن |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Markazi |
| Subdivision Type2: | County |
| Subdivision Name2: | Saveh |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Nowbaran |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Aq Kahriz |
| Population As Of: | 2006 |
| Population Total: | 15 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 35.2756°N 49.7569°W |
Atolen (Persian: اتلن, also Romanized as Ātolen; also known as Ātūlen and Ātūlīn) is a village in Aq Kahriz Rural District, Nowbaran District, Saveh County, Markazi Province, Iran. At the 2006 census, its population was 15, in 6 families.