Quick answer
Ilona is a girl name meaning "joy".
Pronunciation: Hungarian /ˈi.lo.nɒ/; German /i.ˈloː.na/; German /ˈiː.lo.na/; Finnish /ˈi.lo.nɑ/; Polish /i.ˈlɔ.na/; Czech /ˈɪ.lo.na/.
Meaning and history
Old Hungarian form of Helen, possibly via a Slavic form. In Finland it is associated with the word ilona, a derivative of ilo "joy".
Notes and context
Usage: hungarian, german, finnish, estonian, latvian, lithuanian, polish, czech