Surname Oliveiras (Oliveiras 
) , around the globe, is a rare cognomen. The family name Oliveiras is characteristic of Portugal, where it is a rare surname, Brazil, and Venezuela, where it is a very rare surname. Much less frequently, Oliveiras is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oliveiras | Portugal, Spain, Brazil, United States, Venezuela |