Last name Roustami (Рустами 
, Roustami) , in all the world, is a rare cognomen. The family name Roustami is characteristic of Armenia, where it is quite a common surname, Russia, where it is a very rare surname, and Kyrgyzstan. In absolute terms, it is the most numerous in Armenia, Russia, and Kazakhstan. Much less frequently, Roustami is the forename as well as the last name.