| Official Name: | Deh-e Janjan |
| Native Name: | ده جان جان |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Kermanshah |
| Subdivision Type2: | County |
| Subdivision Name2: | Ravansar |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Zalu Ab |
| Population As Of: | 2006 |
| Population Total: | 102 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 34.6317°N 46.5661°W |
Deh-e Janjan (Persian: ده جان جان, also Romanized as Deh-e Jānjān; also known as Jānjān) is a village in Zalu Ab Rural District, in the Central District of Ravansar County, Kermanshah Province, Iran. At the 2006 census, its population was 102, in 25 families.