Family name Hyun-Seong (현성 
, Hyun-Seong) , in all the world, is an extremely rare surname. Predominantly, Hyun-Seong is the forename as well as the last name. Parts of the name also exists independently as a last name Hyun, and a last name Seong.
| VARIANT | COUNTRY |
|---|---|
| 현성 | South Korea |
Hyeon-Seong, Hyeonseong, Hyun-Sung, and ヒョンソン