Around the world, Alejandro Antonio (Alejandro Antonio 
) is a common male given name. The forename Alejandro Antonio is habitual in Chile, where it is quite a common boy's name, Aland Islands, and Costa Rica, where it is quite a rare male name. Measured by absolute frequency, it is the most numerous in Latin America and the Caribbean, particularly Chile, Peru, and Costa Rica. Very seldom, Alejandro Antonio is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Alejandro Antonio | Costa Rica, Peru, Ecuador, Spain, Chile |