Family name Junsup (Junsup 
) , around the world, is a very rare last name. The last name Junsup is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much more prevalently, Junsup is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Junsup | South Korea, United States, Thailand |