Family name Jiun (Jiun 
, Дзиун) , throughout the world, is a common last name. The surname Jiun is habitual in Malaysia, where it is quite a common surname, Singapore, where it is quite a rare surname, and Hong Kong, where it is a rare surname. In absolute terms, it most frequently occurs in Malaysia, Indonesia, and China. Very seldom, Jiun is the forename as well as the last name.