Noah, a name which presumably 99.99999% of everyone recognises from the famous Biblical story, comes from the Hebrew root nuach (repose, rest). It became widespread in the Anglophone world during the Protestant Reformation, and was particularly popular among Puritans.
This name has been leaping up the U.S. charts since 1988. It entered the Top 100 in 1995, at exactly #100, and was #1 from 2013–16. In 2017, it was #2.
The name also enjoys great popularity around the world. It’s #1 in Switzerland; #2 in Denmark; #3 in Australia, New Zealand, and Northern Ireland; #4 in Belgium, Norway, and England and Wales; #5 in Scotland and The Netherlands; #6 in Ireland; #9 in Sweden; #17 in Austria and France; #67 in Portugal; #76 in Catalonia; #77 in Italy; and #93 in Spain.
American lexicographer Noah Webster (1758–1843), by Samuel Finley Breese Morse
Other forms of this extremely popular name include:
1. Noé is French, Spanish, Portuguese, and Hungarian. The variant Noè is Italian; Nóe is Irish; Noe is Alsatian, Georgian, Romanian, Polish, Greek, and Czech; and Noë is Dutch.
2. Noach is Hebrew and Dutch.
3. Noak is Swedish.
4. Nojus is Lithuanian.
5. Nooa is Finnish.
6. Nuh is Arabic and Turkish.
7. Noa is Hawaiian, Maori, Tongan, Yoruba, Serbian, and Croatian. The alternate form Nóa is Faroese.
8. Nói is Icelandic and Faroese. This may also be a separate name drawn from the Icelandic word nói (small vessel).
9. Noy is Armenian, Russian, and Bulgarian.
10. Noass is Latvian. For obvious reasons, I wouldn’t recommend this spelling in an Anglophone country!
11. Nuhu is Arabic.
Georgian journalist and politician Noe Zhordania, 1868–1953
1. Noa is Hebrew, and quite a popular name. Though it truly transliterates as Noah, most people use the spelling Noa to avoid confusion with what everyone knows as an unmistakably male name.
Contrary to what many name sites report, this is also a completely separate name from the familiar Biblical name. In the Bible, Noa is one of the five righteous daughters of Tzelofehad. The name means “motion, movement.”
2. Noja is Lithuanian.