| Official Name: | Ab Javan |
| Native Name: | آب جوان |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Fars |
| Subdivision Type2: | County |
| Subdivision Name2: | Darab |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Balesh |
| Population As Of: | 2006 |
| Population Total: | 1,637 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 28.8194°N 54.5344°W |
Ab Javan (Persian: اب جوان, also Romanized as Ab Javān and Ab-e Javān; also known as Āb-e Jahān, Ab Jahan, and Ābjahān) is a village in Balesh Rural District, in the Central District of Darab County, Fars Province, Iran. At the 2006 census, its population was 1,637, in 373 families.