Cognomen Onokhua (Onokhua 
) , around the globe, is a rare surname. The last name Onokhua is habitual in Nigeria, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Also, Onokhua is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Onokhua | Nigeria, United Kingdom |