Cognomen קוייאו (Kujau 
, קוייאו 
) , across the world, is a rare surname. The last name קוייאו is characteristic of Germany, where it is a rare surname, Malaysia, where it is an extremely rare surname, and the United States. Much less frequently, קוייאו is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kujau | Germany, India, United States, Malaysia |
| קוייאו | Israel |