Cognomen Junsuk (Junsuk 
) , across the world, is a rare family name. The surname Junsuk is habitual in Thailand, where it is a rare surname, and China, where it is an extremely rare surname. Likewise, Junsuk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Junsuk | China, South Korea, Thailand, United States, Canada |