Family name Seung-Hyun (승현 
, Seung-Hyun 
) , in the entire world, is a rare surname. The surname Seung-Hyun is habitual in South Korea, where it is a rare surname, and the United States, where it is an extremely rare surname. Much more frequently, Seung-Hyun is the forename as well as the last name. Parts of the name also exists independently as a first name Seung, and a last name Hyun.
| VARIANT | COUNTRY |
|---|---|
| 승현 | South Korea |
| Seung-Hyun | China, South Korea, United States |
Seunghyeon, and スンヒョン