In the entire world, Robert Oscar (Robert Oscar 
) is a very rare masculine first name. The forename Robert Oscar is characteristic of Latin America and the Caribbean, particularly Peru, where it is a rare male name. Very seldom, Robert Oscar is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Robert Oscar | Canada, Ecuador, United States, Chile, Peru |
Morales, and Rivera Onofre