Illona \i-llo-na\ as a girl's name is a variant of Ilona (Hungarian, Greek), and the meaning of Illona is "light".

The baby name Illona sounds like Allona, Yllona and Ellona. Other similar baby names are Illene, Iliana, Ileana, Allena, Alona, Allyna, Allina, Allana, Ellena, Ilonka, Elona, Allonia, Bellona, Belona, Ballona, Cliona, Cleona, Eilona, Ilana, Ellina, Ellon, Idona, Illa, Ilena, Illionya, Illiana, Illia, Ilonna, Ilone, Illsa, Iolana, Iona, Talona, Wilona and Xylona.