Family name Yoosook (Yoosook 
) , in all the world, is a rare surname. The surname Yoosook is habitual in Thailand, where it is a rare surname, Norway, where it is a very rare surname, and the United States, where it is an extremely rare surname. In absolute terms, it is the most numerous in Thailand, India, and the United States. Likewise, Yoosook is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yoosook | Norway, Thailand, United States, India, South Korea |