Cognomen Fuay (Fuay 
) , across the world, is a very rare last name. The surname Fuay is characteristic of Malaysia, where it is a rare surname, Thailand, where it is an extremely rare surname, and the United States. Very seldom, Fuay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fuay | Costa Rica, Thailand, United States, Malaysia |