| Official Name: | Aljan |
| Native Name: | الجان |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Markazi |
| Subdivision Type2: | County |
| Subdivision Name2: | Mahallat |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Khurheh |
| Population As Of: | 2023 |
| Population Total: | 13 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 34.1106°N 50.3439°W |
Aljan (Persian: الجان, also Romanized as Aljān; also known as Alchān, Algān, and Algon) is a village in Khurheh Rural District, in the Central District of Mahallat County, Markazi Province, Iran. At the 2023, its population was 4, in 2 families.