Cognomen Oneile (Oneile 
) , around the globe, is a rare family name. The family name Oneile is habitual in Botswana, where it is quite a rare surname, Australia, where it is a rare surname, and New Zealand, where it is a very rare surname. In absolute terms, this name is the most popular in Botswana, Australia, and the United Kingdom. Also, Oneile is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oneile | United Kingdom, Botswana, Australia, United States, South Africa |