Ab Javan (, also Romanized as Ab JavÃÂn and Ab-e JavÃÂn; also known as ÃÂb-e JahÃÂn, Ab Jahan, and ÃÂbjahÃÂn) 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.