Cognomen กุยเฮง (Kuiheng 
, กุยเฮง 
) , in the world, is an extremely rare surname. The last name กุยเฮง is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Predominantly, กุยเฮง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kuiheng | China |
| กุยเฮง | Thailand |