Cognomen Oloni (Oloni 
) , across the world, is quite a rare last name. The last name Oloni is characteristic of the Democratic Republic of the Congo, where it is a rare surname, Nigeria, and the United Kingdom, where it is a very rare surname. Also, Oloni is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oloni | Brazil, United Kingdom, Democratic Republic of the Congo, Nigeria, India |