Surname Onesi (Onesi 
) , around the globe, is a rare family name. The surname Onesi is characteristic of New Zealand, where it is a rare surname, Canada, where it is a very rare surname, and Nigeria. In absolute terms, it is the most numerous in Nigeria, the United States, and Canada. Also, Onesi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Onesi | Brazil, Nigeria, Canada, United States, Cuba |