Cognomen Ferillo (Ferillo 
) , all around the world, is a very rare last name. The cognomen Ferillo is habitual in Italy, where it is a very rare surname, Philippines, where it is an extremely rare surname, and the United States. Very seldom, Ferillo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ferillo | Brazil, Philippines, Italy, United States |
| pietro ferillo Roman Catholic bishop |
|