Surname กุ๋ย (Kui 
, กุ๋ย) , throughout the world, is a widespread family name. The surname กุ๋ย is habitual in Malaysia, where it is quite a common surname, India, and Hong Kong, where it is quite a rare surname. In absolute terms, it is the most numerous in India, China, and Malaysia. Much less frequently, กุ๋ย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kui | China, Indonesia, Malaysia, India, Japan |