Last name Khyen (Хиен 
, Хён 
, Khyen 
) , throughout the world, is a very rare family name. The cognomen Khyen is habitual in Belarus, where it is a rare surname, Malaysia, where it is a very rare surname, and Kazakhstan. In absolute terms, it is the most numerous in Belarus, Russia, and Malaysia. Likewise, Khyen is the forename as well as the last name.