Surname Chieun (Chieun 
) , worldwide, is a very rare family name. The last name Chieun is habitual in Malaysia, where it is a very rare surname, and the United States, where it is an extremely rare surname. More frequently, Chieun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chieun | South Korea, Malaysia, United States |