Cognomen Alejandro Antonio (Alejandro Antonio 
) , around the world, is quite a rare surname. The family name Alejandro Antonio is characteristic of Chile, where it is quite a common surname, and Spain, where it is a rare surname. More frequently, Alejandro Antonio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Alejandro Antonio | Costa Rica, Peru, Ecuador, Spain, Chile |