Surname Unsook (Unsook 
) , all around the world, is a very rare family name. The family name Unsook is habitual in Thailand, where it is a very rare surname, China, where it is an extremely rare surname, and the United States. More frequently, Unsook is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Unsook | Canada, South Korea, United States, Thailand, China |