Happy New Year, a year of luck if your language isn't in it!

Alsatian: E glëckliches / güets nëies Johr
Danish: Godt nytår
Dutch: Gelukkig nieuwjaar
English: Happy new year!
Faroese: Gleðiligt nýggjár / Gott nýtt ár
German: Frohes Neues / Prost Neujahr / Guter Rutsch!
Jamtlandic: Gott nýár!
Norwegian (Bokmål): Godt nytt år
Swedish: Gott nytt år! Gott nyår!
Yiddish: Tov rosh!

Catalan: Bon any nou
Français: Bonne année
Languedocian: Bona annada
Portuguese: Feliz ano novo
Provençal : Bona annada
Romanian: Un an nou fericit! / La mulţi ani!
Spanish: Feliz año nuevo / ¡Próspero año nuevo!
Walloon: Bone annéye

Bulgarian: Честита нова година!
Croatian: Sretna nova godina
Polish: Szczęśliwego Nowego Roku
Russian: С новым годом!
Serbian: Срећна нова година
Slovak: Šťastný nový rok

Estonian: Head uut aastat!
Finnish: Hyvää uutta vuotta!
Hungarian: Boldog új évet!

Breton: Bloavezh mat

Basque: Urte berri on

Berber: Asgwas amegas

Malgache: Arahaba tratry ny taona
Tongan: Monū'ia 'a e ta'u fo'oú

Japanese: 開けまして/新年 おめでとうございます

Arabic:كل عام وأنت بخير

Irish: Athbhliain faoi mhaise duit

Greek: Καλή χρονιά / Ευτυχισμένο το νέο έτος

Turkish: Yeni yılın(ız) kutlu olsun / İyi yıllar

Many thanks Sander!! Very interesting to see it in all those different languages indeed.

A not for Irish: Here, multiple people can and are going to read this, so you'd use the plural form of 'to you' so it'd therefore be: "Athbhliain faoi mhaise daoibh". Sorry to be picky ;)

Ben.

you've forgotten Italian

For anyone who's interested, here's how you pronounce both the singular and plural versions of Happy new Year in Irish:

singular = Athbhliain faoi mhaise duit
plural = Athbhliain faoi mhaise daoibh

http://www.irishgaelictranslator.com/gaelic/forum_sounds/athbhlian.mp3

Maybe other people could post sound recordings of Happy New Year in their native languages?

Ben.

A few you've missed-

In Welsh : Blwyddyn Newydd Dda

Italian: Buon Capo d'Anno

Hebrew: Shanah tovah

Scots Gaelic: Bliadhna mhath ur

Vietnamese: Cung Chúc Tân Xuân

That's all I know off hand.

Ben.

Bliadhna mhath ur e' Alba! Damian, Alba (Scotland)

Blwyddyn newydd dda o Gymru! Andrew, Gogledd Cymru (North Wales)

HAPPY HOGMANAY from Scotland
Happy New Year from the United Kingdom