Surname Jeonghoon (정훈 
, Jeonghoon 
) , around the world, is a rare family name. The last name Jeonghoon is habitual in South Korea, where it is quite a rare surname, Malaysia, where it is a very rare surname, and China, where it is an extremely rare surname. Predominantly, Jeonghoon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 정훈 | South Korea |
| Jeonghoon | Japan, South Korea, China, United States, Indonesia |