Surname Jae-Joon (재준 
, Jae-Joon 
) , across the world, is an extremely rare last name. Much more prevalently, Jae-Joon is the forename as well as the last name. Parts of the name also exists independently as a first name Jae, and a first name Joon.
| VARIANT | COUNTRY |
|---|---|
| 재준 | South Korea |
| Jae-Joon | South Korea, United States, France |