In all the world, Barreiros (Barreiros 
) is a very rare male first name. The first name Barreiros is characteristic of Eastern Asia, particularly China, where it is an extremely rare masculine name. Much more frequently, Barreiros is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Barreiros | France, Brazil, Portugal, Spain, Argentina |
| gaspar barreiros Portuguese cleric and scholar (1501-1574), PT (b. 1501) |
|
|
| salazar barreiros Brazilian politician (1939-2021), BR (b. 1939) |
|