No, Billie Eilish is not jewish. But she does not even look like a jew...
See her childhood and her family's photos...
I also like some of her songs, she has a nice and interesting voice.
Eilish is the Irish version of Eilisheva, which is originally N O T a hebrew name at all!
As even Solomon is not a hebrew name originally. It is disgusting that Elisheva is defined as a true hebrew name, "El" is a greek word and the meaning of the name has pagan origin too but idiot christians misunderstand it.
Elizabeth is the later version of this name.