Cognomen Oneza (Oneza 
) , in the world, is a rare family name. The surname Oneza is habitual in Philippines, where it is a rare surname, Syria, and Georgia, where it is a very rare surname. In absolute terms, it is commonest in Philippines, Syria, and Tanzania. Also, Oneza is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oneza | India, Tanzania, Bangladesh, Syria, Philippines |