Worldwide, Илза (Ilza 
, Илза 
, Ylza 
) is a common feminine given name. The given name Илза is habitual in Brazil, where it is quite a common feminine name, Nicaragua, where it is a rare feminine name, and Georgia. In absolute terms, it is commonest in Brazil, Indonesia, and South Africa. Very seldom, Илза is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ilza | Poland, South Africa, Brazil, Honduras, Indonesia |
| Илза | Kazakhstan, Russia, Bulgaria |
| Ylza | Brazil, Mexico, Venezuela, United States, Argentina |
Alžběta, Betina, Betsy, Bettina, Betty, Elisabet, Elisabeth, Elisabetta, Elizabet, Elizabeta, Elizabeth, Elizabeto, Elspeth, Elżbieta, Elžbieta, Erzsebet, Erzsébet, Eske, Ilsa, Ilse, Ilze, Isabel, Isabella, Isabelle, Izabel, Izabela, Izabella, Liesbeth, Liese, Liesel, Liesl, Liisa, Liisi, Lisa, Lise, Liz, Liza, Tina, Tine, Élisabeth, Ísabella, Ελισάβετ, Альжбета, Бети, Бетина, Бетси, Бетти, Беттина, Бетті, Елизабет,
Илза is also a name for the fictitious and mythical characters: Ilse De Winne , character in Spoed.
| илза пъжева Bulgarian researcher, chemist, BG (b. 1953) |
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| илза бафтиари MK |
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