Cognomen Juak (Juak 
) , across the world, is a very rare family name. The cognomen Juak is habitual in Malaysia, where it is a rare surname, Philippines, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. Much less frequently, Juak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Juak | Nigeria, Malaysia, Philippines, Colombia |