Surname Yoochan (Yoochan 
) , all over the world, is an extremely rare last name. The surname Yoochan is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Predominantly, Yoochan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yoochan | South Korea, Thailand, United States |