Cognomen Guiaz (Guiaz 
) , all over the world, is a rare last name. The surname Guiaz is characteristic of Argentina, where it is a rare surname, Philippines, where it is a very rare surname, and Venezuela, where it is an extremely rare surname.
Ana, Felix, Martin, Martha, Marcos, Melina, Menard, Milton, Sandra, Alicia, Aroldo, Carlos, Carmen, Ramona, Raquel, Ronnie, Rowena, Daniel, Gladiz, Gloria, Joseph, Joshua, Vilma, Norma, Juana, Julia, Rosa, Rita, Jose, Juan, Elsa, Eden, Olga, Maria, Selso, Carla, Teresa, Ramon, David, Guido, Laura, Lidia, Loida, Lucia, Luisa, Jaime, Jorge, Jerry, Ruben, and Estela