Cognomen Duyok (Duyok 
) , throughout the world, is a very rare surname. The cognomen Duyok is habitual in South-eastern Asia, particularly Malaysia, where it is a very rare surname, and Philippines, where it is an extremely rare surname. Very seldom, Duyok is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Duyok | Malaysia, Philippines |