Ilona \i-lo-na\ as a girl's name is pronounced eye-LOH-nah, eye-LONE-ah. It is of Hungarian and Greek origin, and the meaning of Ilona is "light". Variant of Helen. Also carries the connotation of "beautiful", because of the beauty of Helen of Troy.
Ilona has 9 variant forms: Elona, Ellona, Elonna, Illona, Ilone, Ilonka, Ilonna, Yllona and Yionna.
For more information, see also the related name Alona.