All over the world, Deltin (Deltin 
) is a very rare masculine first name. Much more frequently, Deltin is the last name as well as the forename.
Mia, Mario, Marta, Mateo, Mabel, Mirta, Sixto, Angel, Ariel, Adela, Maria, Celia, Berta, Pablo, Paolo, Ramon, Ruben, Delia, Dario, Laura, Lilia, Craig, Lidia, Omar, Ilda, Ana, Mark, Alan, Aldo, Raul, Dora, Gino, Lola, Luis, Ivan, Luka, Juan, Nora, Elsa, Elva, Elba, Egle, Hugo, Fany, Iris, Jose, and Livio