Last name チエン (Tsien 
, チエン 
) , across the world, is quite a rare cognomen. The surname チエン is characteristic of Hong Kong, where it is quite a rare surname, Singapore, and Malaysia, where it is a rare surname. In absolute terms, this name is the most popular in Hong Kong, Malaysia, and the United States. Very seldom, チエン is the forename as well as the last name.