Last name Roberto Alejandro (Roberto Alejandro 
) , in the world, is quite a rare cognomen. The cognomen Roberto Alejandro is habitual in Chile, where it is quite a common surname, Spain, where it is a rare surname, and Mexico, where it is an extremely rare surname. More prevalently, Roberto Alejandro is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Roberto Alejandro | Peru, Argentina, Spain, Chile, Ecuador |