Around the globe, Ильса (Ильса 
) is an extremely rare feminine given name.
| VARIANT | COUNTRY |
|---|---|
| Ильса | Russia |
Alžběta, Betina, Betsy, Bettina, Betty, Elisabet, Elisabeth, Elisabetta, Elizabet, Elizabeta, Elizabeth, Elizabeto, Elspeth, Elżbieta, Elžbieta, Erzsebet, Erzsébet, Eske, Ilsa, Ilse, Ilza, 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,
Ильса is also a name for the fictitious and mythical characters: Ilsa Faust , the fictional character from the Mission: Impossible films, Mission: Impossible – Fallout and Ilsa Lund , the fictional character from the 1942 film Casablanca.