Surname Yoohun (Yoohun 
) , globally, is an extremely rare cognomen. The cognomen Yoohun is habitual in Thailand, where it is an extremely rare surname, and the United States. Predominantly, Yoohun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yoohun | South Korea, United States, India, Thailand |