Noa = girls name. Noah = boys name. I have experience of having a daughter named Noa and my DH and I personally love the name. I know Noa is commonly confused with Noah though it is unrelated to the male name Noah.
Noa is a Old Testement Hebrew girls name and means 'motion'. The Daughters of Zelophehad (Hebrew: ×‘Ö°Ö¼× ×•Ö¹×ª צְלָפְחָד‎) were five sisters in the Hebrew Bible who lived during the Exodus of the Israelites from Egypt, and who raised before Moses the case of a woman's right and obligation to inherit property in the absence of a male heir in the family. Zelophehad (possibly meaning "first born"), a man of the Tribe of Manasseh, had five daughters: Mahlah, Noa, Hoglah, Milcah, and Tirzah; but no sons, and thus no male heirs.The text tells little of Zelophehad himself, save that he died during the 40 years when the Israelites were wandering in the wilderness.
I like the name because it stands for a strong woman fighting for equal rights. In Hawaiin it also means 'freedom' and 'from love' in Japanese.
My husband likes the Japanese meaning.
We do however, have a lot of he/she problems and raised eyebrows about the name. But I have to say the name has grown on those who had a few reservations in our family. Plus our Noa really suits the name Noa.
This is my experience of the name and I have to say I love it!