Surname Munhwan (Munhwan 
) , worldwide, is an extremely rare cognomen. The last name Munhwan is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, Munhwan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Munhwan | South Korea, United States, China, Thailand |