Surname Yeunsuk (Yeunsuk 
) , in all the world, is a very rare last name. The last name Yeunsuk is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much more prevalently, Yeunsuk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yeunsuk | South Korea, Thailand, United States |