Family name Ononi (Ononi 
) , globally, is a rare cognomen. The family name Ononi is habitual in the Democratic Republic of the Congo, where it is a rare surname, Nigeria, where it is an extremely rare surname, and India. Very seldom, Ononi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ononi | Democratic Republic of the Congo, Nigeria, India |