Last name 용환 (용환 
, Yong-Hwan 
, Yonghwan 
) , all over the world, is a rare surname. The last name 용환 is characteristic of South Korea, where it is a rare surname, China, where it is an extremely rare surname, and the United States. Predominantly, 용환 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 용환 | South Korea |
| Yong-Hwan | Canada, United States, South Korea |
| Yonghwan | South Korea, China, Canada, United Kingdom, United States |