Around the globe, Casiglia (Casiglia 
) is an extremely rare unknown gender first name. Much more frequently, Casiglia is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Casiglia | Italy, France, United States, Australia |
Joe, Alberto, Alfredo, Anthony, Claudio, Roberto, Jeffrey, Timothy, Edoardo, Ernesto, Marcella, Concetta, Kathleen, Patrizia, Riccardo, Virginia, Fabrizio, Katherine, Donatella, Francesca, Michael, Francesco, Massimo, Teresa, Ugo, Mark, Mike, Anna, Iris, Ivan, Marco, Carlo, Piero, Debra, Laura, Frank, Marzio, Simone, Andrea, Angelo, Autumn, Debora, Joseph, Teckla, and Alessandro