Family name Roustem (Рустем 
, Рустэм 
, Roustem 
) , across the world, is quite a rare cognomen. The family name Roustem is characteristic of Central Asia, particularly Uzbekistan, where it is quite a rare surname, Kyrgyzstan, and Kazakhstan, where it is a rare surname. Measured by absolute frequency, the name is most common in Russia, Uzbekistan, and Kazakhstan. Predominantly, Roustem is the forename as well as the last name.