Surname Sunghan (Sunghan 
) , across the world, is a rare last name. The surname Sunghan is characteristic of Thailand, where it is a rare surname, and China, where it is an extremely rare surname. More frequently, Sunghan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sunghan | China, South Korea, Taiwan, Thailand, United States |