Family name Alderio (Alderio 
) , around the world, is a very rare surname. The last name Alderio is characteristic of Italy, where it is a very rare surname, Brazil, and Venezuela, where it is an extremely rare surname. Also, Alderio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Alderio | Brazil, Italy, Argentina, Philippines, France |