Across the world, Cadao (Cadao 
) is an extremely rare gender-neutral first name. Much more prevalently, Cadao is the last name as well as the forename.
Pj, Sanny, Alice, Allan, Alona, Anita, Ariel, Amado, Aimee, Celso, Bonie, Peter, Pedro, Randy, Roman, Rixon, Digna, Gregg, Luisa, Luzia, Luzyl, Jesus, Marie, Jimmy, Maria, Neil, May, Mae, Ann, Paz, Rey, Mark, Mika, Alen, Anne, Raul, Rose, Rene, Rica, Rito, Ruby, Dick, Levy, Lisa, Luiz, Jose, Joel, Emma, and Jinky