In all the world, Ruben Sergio (Ruben Sergio 
) is a rare male forename. The first name Ruben Sergio is characteristic of Latin America and the Caribbean, particularly Chile, where it is a rare boy's name, Bolivia, and Peru. Much less frequently, Ruben Sergio is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ruben Sergio | Spain, Chile, Bolivia, Mexico, Peru |