Family name Aleonsio (Aleonsio 
) , around the world, is an extremely rare last name. The cognomen Aleonsio is habitual in Latin America and the Caribbean, particularly Mexico, where it is an extremely rare surname, and Brazil. Likewise, Aleonsio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Aleonsio | Mexico, Brazil, United States |