Austria: Frohe Weinachten!
Belgium: Vrolijke Kerstmis! (Flemish)
Denmark: Glaedelig Jul!
Welsh: Nadologcq Llawn!
English: Merry Christmas!
Finland: Hauskaa Joulua!
French: Joyeux Noel!
German: Frohliche Weinachten!
Greek: Kala Christougena!
Holland: Zalig Kestfeest!
Irish: Nollaig Shona dhuit! (Gaelic)
Italian: Buon Natale!
Norwegian: Gledelig Jul! (and pass the Lutefish!)
Polish: Boze Narodzenie!
Portuguese: Boas Festas!
Spanish: Feliz Navidad!
Swedish: God Jul!
Russian: S Rojdestwom! (Thanks, cha0s)
And my wish to you: Happy Everything2, and Merry Christmas! May your nodes bring C!'s, and may your writings be read by millions of adoring fans.