Just in case we have an non-English speakers here
Basque - Urte Berri On
Brazilian - Feliz Ano Novo
Chinese - Xin nian kuai le
Cornish - Nadelik looan na looan blethen noweth
Cree - Mitho Makosi Kesikansi
Danish - Godt nytår
Dutch - Gelukkige nieuwjaar
Esperanto - Gajan Kristnaskon
Farsi - Shoma mobarak bashad
French - Bonne année
German - Frohes neues jahr
Hebrew - Shanah tovah / Chena tova
Icelandic - God Ny'ar
Hindi - Shub Naya Baras
Hungarian - Boldog U'j E'vet!
Iraqi - Idah Saidan Wa Sanah Jadidah
Italian - Buon anno
Japanese - Akemashite omedeto
Lithuanian - Laimingu najuju metu
Greek - kainourgios chronos
Manx - Nollick ghennal as blein vie noa
Norwegian - Godt nytt år
Polish - Nowego roku
Portuguese - Feliz ano novo
Rapa-Nui - Mata-Ki-Te-Rangi. Te-Pito-O-Te-Henua
Russian - Schastlivogo / S Novim Godom / novogo goda!
Scottish Gaelic - Bliadhna mhath ur dhuit
Spanish - Feliz año nuevo
Serbo-Croatian - Sretna Nova godina
Swedish - Gott nytt år
Tagalog - Maligayamg Pasko. Masaganang Bagong Taon
Turkish - Mutlu (or Hos) yilbasi
Welsh - Nadolig Llawen
That should just about cover most people
Ian
at the moment - but expanding all the time....) 
