In all the world, Oscar Jairo (Oscar Jairo 
) is a very rare boy's first name. The first name Oscar Jairo is characteristic of Latin America and the Caribbean, particularly Chile, where it is a very rare boy's name, Colombia, and Peru. Very seldom, Oscar Jairo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Oscar Jairo | Costa Rica, Ecuador, Colombia, Chile, Peru |