Surname Alonso Mariano (Alonso Mariano 
) , in the world, is an extremely rare cognomen. The family name Alonso Mariano is habitual in Chile, where it is a very rare surname, and Spain, where it is an extremely rare surname. Also, Alonso Mariano is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Alonso Mariano | Costa Rica, Peru, Spain, Chile |