Last name Phuay (Phuay 
) , worldwide, is a rare surname. The family name Phuay is characteristic of Singapore, where it is quite a rare surname, Hong Kong, and Malaysia, where it is a rare surname. Very seldom, Phuay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phuay | Singapore, Hong Kong, China, Malaysia |