Cognomen Casilio (Casilio 
) , in all the world, is a rare family name. The cognomen Casilio is characteristic of Italy, where it is a rare surname, the United States, where it is a very rare surname, and Canada. Measured by absolute frequency, it is commonest in the United States, Italy, and Philippines. Much less frequently, Casilio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Casilio | Philippines, Canada, Brazil, Italy, United States |
|
maria-pia casilio Italian actress (1935-2012), IT (b. 1935) |
|
| nicolò casilio rugby player, IT (b. 1998) |
|
Amy, Jill, Nick, Edna, Maria, Marie, Mario, Marco, Marcy, Melba, Joel, Megan, Sarah, Susan, Stacy, Scott, April, Corey, Brian, Bruce, Bryon, Mimma, John, Jane, Lori, Ken, Kim, Pat, Deb, Val, Mary, Mark, Mike, Sara, Sean, Alex, Anna, Cara, Cory, Paul, Rose, Rita, Ryan, Dale, Gina, Lisa, Karen, and Kelly