Surname Sunghwa (Sunghwa 
) , all around the world, is an extremely rare last name. The cognomen Sunghwa is habitual in Cambodia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much more frequently, Sunghwa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sunghwa | South Korea, Cambodia, Thailand, United States, Canada |