In the world, Cadagan (Cadagan 
) is an extremely rare unknown gender forename. Much more frequently, Cadagan is the last name as well as the forename.
Mr, John, Juan, Todd, Hugo, Faye, Irma, Maria, Marco, Mauro, Molly, Shawn, Scott, Adele, Carol, Cesar, Cilia, Brian, Brent, Kayla, Pablo, Pedro, Jose, Luis, Liza, Lisa, Ana, Rym, Dan, Leo, Lyn, Eva, Mary, Sara, Sury, Alex, Ruben, Alma, Kara, Kaya, Kris, Raul, Rosa, Rene, Rico, Ryan, Doly, Gina, Anel, and David