Noa

Okay, this is going to be confusing...

There is a female figure in the Old Testament named Noa or Noah, whose name derives from the Hebrew No'ah, meaning "motion". The popular Biblical male name Noah (sometimes spelled as the streamlined Noa) is derived from a different Hebrew name: Noach "rest, repose" – although confusingly they are often written the same in English.

Noa is the modern Hebrew spelling of the female name, and is very popular for girls in Israel, as well as in several European countries, including Spain, Portugal, and the Netherlands. But Noa is also a popular spelling of the male name Noah in countries including France, Croatia and Bosnia and Herzegovina.

So is a boy named Noa named after a female Biblical figure (whose name means "motion") or a male one (meaning "rest")? That's up to you! The ideal of gender neutrality means nothing belongs exclusively to one sex or the other, and that includes the spellings of Noa/Noah.