Family name Suhyoun (Suhyoun 
) , across the world, is an extremely rare surname. The cognomen Suhyoun is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Much more prevalently, Suhyoun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Suhyoun | South Korea, United States |