Surname 재훈 (재훈 
, Jaehun 
, Jae-Hoon 
) , across the world, is quite a rare cognomen. The last name 재훈 is characteristic of South Korea, where it is quite a rare surname, China, where it is an extremely rare surname, and Thailand. More prevalently, 재훈 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 재훈 | South Korea |
| Jaehun | China, South Korea, Australia, United States, Canada |
| Jae-Hoon | Germany, China, South Korea, United States, Canada |
| Jae-Hun | South Korea, United States |