Around the world, Osvaldo Marcos (Osvaldo Marcos 
) is a very rare boy's first name. The given name Osvaldo Marcos is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare masculine name. Much less frequently, Osvaldo Marcos is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Osvaldo Marcos | Brazil, Chile, Argentina, Italy |