Cognomen 정환 (정환 
, Jeonghwan 
, Jung-Hwan 
) , in the entire world, is a rare surname. The family name 정환 is habitual in South Korea, where it is a rare surname, Spain, where it is a very rare surname, and China, where it is an extremely rare surname. Much more prevalently, 정환 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 정환 | South Korea |
| Jeonghwan | Thailand, Spain, South Korea, China, United States |
| Jung-Hwan | Canada, United States, South Korea |
| Jeong-Hwan | United States, South Korea |