Last name Chiun (ชุน 
, Chiun 
) , worldwide, is quite a rare cognomen. The surname Chiun is habitual in South-eastern Asia, particularly Malaysia, where it is quite a rare surname, Singapore, where it is a rare surname, and Thailand, where it is a very rare surname. In absolute terms, this name is the most popular in Malaysia, China, and Indonesia. Likewise, Chiun is the forename as well as the last name.