Last name ผุย (Phui 
, ผุย 
, Decay 
) , in the entire world, is quite a rare family name. The cognomen ผุย is habitual in Malaysia, where it is quite a rare surname, Singapore, where it is a rare surname, and France. In absolute terms, the name is most common in Malaysia, Indonesia, and France. Likewise, ผุย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phui | Indonesia, Malaysia, Singapore, United States, India |
| ผุย | Thailand |
| Decay | China, Indonesia, Myanmar, United States, France |