Cognomen Cassello (Cassello 
) , in the world, is a rare last name. The surname Cassello is characteristic of the United States, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Very seldom, Cassello is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cassello | Canada, United Kingdom, United States |
| kathleen cassello American operatic soprano, US (b. 1958) |
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| jackie cassello American gymnast, US (b. 1966) |
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Aj, James, Joann, Nancy, Ellen, Erica, Emily, Henry, Frank, Margie, Sharon, Steven, Alfred, Arlene, Adrian, Ashley, Philip, Robert, Daniel, Danika, Dakota, Dillon, Janet, Louis, Gerad, Karyn, Ann, Amy, Dan, Joe, Jim, Mary, Sara, Andi, Carl, Kole, Gaeton, Rose, Lisa, John, Teal, Tian, Marci, Megan, Shane, Anita, Casey, Karen, Dawn, and George