'Shahs Of Sunset' Slammed By Hot Model ... I'm the REAL 'Persian Barbie'

There can only be one "PERSIAN BARBIE" ... so says a smokin' hot model who claims Bravo's show "Shahs of Sunset" is illegally using HER moniker for one of their cast members. Niki Ghazian (left) -- FHM model and self-proclaimed "Persian Barbie" --…