| Official Name: | Gardaneh-ye Jenjan |
| Native Name: | گردنه جنجان |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Fars |
| Subdivision Type2: | County |
| Subdivision Name2: | Mamasani |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Fahlian |
| Population As Of: | 2006 |
| Population Total: | 39 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 30.2208°N 51.4575°W |
Gardaneh-ye Jenjan (Persian: گردنه جنجان, also Romanized as Gardaneh-ye Jenjān; also known as Jenjān, Jinjūn, and Lenjūn) is a village in Fahlian Rural District, in the Central District of Mamasani County, Fars Province, Iran. At the 2006 census, its population was 39, in 8 families.