All around the world, Deldo (Deldo 
) is a very rare primarily masculine, but very seldom feminine forename. Much more prevalently, Deldo is the last name as well as the forename.
Rex, Pedro, Ramon, Roque, Delia, Devin, Danny, David, Daisy, Dinah, Grace, Linda, Louis, Janey, Julio, Tomas, Norma, Yoann, Martin, Monina, Miebel, Sylvie, Kevin, Bruno, Cathy, Ariel, Maya, Myla, Alan, Alma, Agus, Rosa, Rudy, Ryan, Lino, Jake, Alicia, Jose, Juvy, Maria, Mario, Medel, Mehdi, Mechy, Sarah, Shari, Allan, Angel, Juan, and Arlene