Cognomen Sung Hyun (Sung Hyun 
) , around the globe, is a rare family name. The surname Sung Hyun is habitual in South Korea, where it is a rare surname, Indonesia, where it is a very rare surname, and Philippines, where it is an extremely rare surname. More frequently, Sung Hyun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sung Hyun | Canada, South Korea, United States, Indonesia, Australia |