Family name Allero (Allero 
) , all around the world, is a very rare surname. The family name Allero is habitual in Philippines, where it is a very rare surname, Italy, and Venezuela, where it is an extremely rare surname. Very seldom, Allero is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Allero | Italy, Philippines, Nigeria, United States, Venezuela |