All over the world, Castellas (Castellas 
) is an extremely rare unknown gender first name. Much more prevalently, Castellas is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Castellas | Canada, India, France, Australia, Ireland |
Mark, Dynica, Gerard, Leonne, Janice, Nadine, Yasmin, Mellisa, Suzanne, Anthony, Candice, Cesario, Royston, Richard, Jeffrey, Natalie, Valerie, Samantha, Courtney, Valérie, Josselyne, Marguerite, Damian, Christopher, Carole, Sharon, Bill, Maria, Sarah, Serge, Cliff, Cloé, Karen, Karly, Keith, Peter, Denis, David, Gavin, Gemma, Leigh, Josep, Nadya, Yayoi, Martin, Sandra, Savina, Adrian, and Jean-Pierre