| Official Name: | Tajan |
| Native Name: | تجن |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Gilan |
| Subdivision Type2: | County |
| Subdivision Name2: | Astaneh-ye Ashrafiyeh |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Kisom |
| Population As Of: | 2006 |
| Population Total: | 282 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 37.2375°N 49.8917°W |
Tajan (Persian: تجن; also known as Tadzhin and Tājīn) is a village in Kisom Rural District, in the Central District of Astaneh-ye Ashrafiyeh County, Gilan Province, Iran. At the 2006 census, its population was 282, in 94 families.