Surname Alejandra Antonia (Alejandra Antonia 
) , around the world, is a rare cognomen. The family name Alejandra Antonia is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare surname. More prevalently, Alejandra Antonia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Alejandra Antonia | Costa Rica, Peru, Ecuador, Spain, Chile |