Last name Hladuniak (Hladuniak 
) , across the world, is a very rare surname. The cognomen Hladuniak is habitual in Latin America and the Caribbean, particularly Brazil, where it is a very rare surname.
Eva, Iraide, Antonio, Augusto, Basilio, Rozilda, Leandro, Luciano, Josiane, Juliano, Valderi, Valdeci, Ivanira, Jhonatan, Varcilio, Silvestre, Anastacia, Cristiane, Felipe, Vilson, Helena, Eliton, Ini, Iva, Leni, Luiz, Jose, Enzo, Maria, Maira, Gabriella, Paulo, Marcia, Mateus, Silvia, Sergio, Rayane, Raquel, Thaisa, Elissa, Vitor, and Vanderlei