Billie Eilish had a period where she had a lot of faith when she was young. However, this phase passed according to one of her appearances on the podcast, since she said:
“I don’t know if you know this, actually I think I’ve never talked about it. But when I was little, a kid, I was very religious, for no particular reason. My family was never religious. I didn’t know anyone who was religious. But for some reason I don’t know, I was very religious”, then she continued with: “From a certain point on, I don’t know why either, it completely disappeared”.
We understand therefore that she’s someone who asks herself a lot of questions about this, and who still tried to make her way in religion.
Billie Eilish's religion is not publicly known. To date, Billie Eilish has never officially discussed his or her religious beliefs.
Many people are wondering whether the singer has converted to Islam. There are some rumors that are founded, due to the fact that she has publicly supported Palestine. Moreover, one can find some AI videos that make her recite the Shahada on social media. But these videos are fake. Billie Eilish is not Muslim.