Last name Oilivia (Oilivia 
) , worldwide, is an extremely rare cognomen. The last name Oilivia is habitual in Latin America and the Caribbean, particularly Venezuela, where it is an extremely rare surname. Much more frequently, Oilivia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oilivia | Philippines, Brazil, Spain, United States, Venezuela |