Cognomen Diliano (Diliano 
) , across the world, is an extremely rare surname. The surname Diliano is characteristic of Latin America and the Caribbean, particularly Nicaragua, where it is a very rare surname, Argentina, where it is an extremely rare surname, and Mexico. More frequently, Diliano is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Diliano | Nicaragua, Italy, Philippines, Mexico, Brazil |