Surname Sunghoi (Sunghoi 
) , throughout the world, is a very rare family name. The family name Sunghoi is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, Sunghoi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sunghoi | South Korea, United States, Thailand |