Cognomen كيان (كيان 
, Kian 
, Cian ) , around the world, is a widespread last name. The cognomen كيان is habitual in Malaysia, where it is a common surname, Iraq, where it is quite a common surname, and Myanmar, where it is quite a rare surname. In absolute terms, it is commonest in Malaysia, Iraq, and Iran. Likewise, كيان is the forename as well as the last name.