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