Family name De Oliveira Barros (De Oliveira Barros 
) , in the world, is a very rare cognomen. The surname De Oliveira Barros is characteristic of Portugal, where it is a rare surname, France, where it is an extremely rare surname, and Spain. In absolute terms, it most frequently occurs in Portugal, France, and Brazil.
| VARIANT | COUNTRY |
|---|---|
| De Oliveira Barros | Spain, France, Portugal, Brazil |