Surname Alvaro Sixto (Alvaro Sixto 
) , throughout the world, is an extremely rare cognomen. The last name Alvaro Sixto is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Alvaro Sixto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Alvaro Sixto | Peru, Ecuador, Chile |