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Gëzuar Krishtlindjen dhe Vitin e Ri - Albanian, "Merry Christmas and Happy New Year"
Mīlād Majīd ميلاد مجيد - Arabic for "Merry Christmas" as used in most of Arabic-speaking countries
Shnorhavor Nor Tari yev Surb Tsnund Eastern Armenian
"Shenoraavor Nor Dari yev Soorp Dzuhnoont" Western Armenian
Zorionak eta Urte Berri On! Basque for Merry Christmas
Nedeleg laouen ha bloavezh mat in Breton
Честито Рождество Христово (Chestito Rozhdestvo Hristovo, Happy Nativity of Jesus) or Весела
Коледа (Vesela Koleda, Merry Christmas) or Честита Коледа (Chestita Koleda, Happy Christmas) in Bulgarian
Bon Nadal i Feliç Any Nou! in Catalan
Bon Nadal - Catalan for Happy Christmas
聖誕節快樂 / 圣诞节快乐 (Shèngdànjié kuàilè) - Merry Christmas!, 新年快樂 / 新年快乐 (Xīnnián kuàilè) - Happy New Year! in Chinese
Nadelik looan na looan blethen noweth Happy Christmas and Happy New Year in Cornish.
Sretan Božić - Croatian for Happy Christmas.
Veselé Vánoce a šťastný nový rok - Czech language, "Merry Christmas and Happy New Year"
Glædelig jul - Danish.
God jul - Danish, Norwegian, Swedish, lit. "Good Yule"
Gleðilig Jól og gott Nýggjár - Faroese - Merry Christmas and happy New Year
Vrolijk Kerstfeest or Zalig Kerstfeest with en een Gelukkig Nieuwjaar - Dutch, "Merry Christmas and Happy New Year"
Gajan Kristnaskon "Merry Christmas" in Esperanto

Häid jõule - Estonian

Maligayang Pasko - Filipino word, a Common Christmas Greeting in the Philippines which was Merry Christmas in English Translation.

Hyvää joulua - Finnish

Joyeux Noël - French for "Happy Christmas" used in France, French Canada, Belgium, Luxembourg, Louisiana, Switzerland, Lebanon and Francophone Africa

Noflike Krystdagen en in protte Lok en Seine yn it Nije Jier! in Frisian

Frohe Weihnachten/Fröhliche Weihnachten und ein glückliches/gutes Neues Jahr - German for Merry Christmas/Merry Christmas and a Happy/Good New Year.

Καλά Χριστούγεννα (Kala Christougenna) - Greek for Merry Christmas.

Mele Kalikimaka - Hawaiian

Boldog karácsonyt/Kellemes karácsonyi ünnepeket : Merry Christmas/Pleasant Christmas Holidays in Hungarian

Gleðileg jól og farsælt komandi ár - Icelandic lit. Joyous Christmas and a prosperous coming Year

Selamat Natal: "Christmas best wishes" Indonesian

Idah Saidan Wa Sanah Jadidah in Iraq

Nollaig Shona Duit - Ireland, (Irish Language), Gaeilge, lit. "Happy Christmas to you".

Buon Natale - Italian, literally Good Christmas; Buon Anno, lit. Good Year; Buone Feste, lit. Good Holidays; also Buon Ferragosto, lit. Good August 15th and Buona Pasqua, lit. Good Easter.

メリークリスマス (Merii Kurisumasu, often with a raised dot between the two words) - Merry Christmas!, よいお年を (Yoi o-toshi-o) (before), 明けましておめでとう (after) - Happy New Year! in Japanese

메리 크리스마스 (meri keuriseumaseu) - Korean

Natale hilare et Annum Faustum! in Latin

Priecīgus Ziemassvētkus - in Latvian

Linksmų šv. Kalėdų ir laimingų Naujųjų metų - Lithuanian "Merry Christmas and Happy New Year"

Schèine Chreschtdaag an e gudde Rutsch in Luxembourg dialect

Среќен Божиќ, (Sreḱen Božiḱ) - Macedonian for Happy Christmas

Il-Milied u s-Sena t-Tajba - Malta - "Happy Christmas and a Happy New Year"

Nollick ghennal as blein vie noa in Manx Gallic

Meri Kirihimete in Māori

کریسمس مبارک - Persian "Merry Christmas"

Wesołych Świąt Bożego Narodzenia in Polish

Feliz Natal in Portuguese

Crăciun Fericit! Romanian for Merry Christmas

С Рождеством Христовым! (S'Rozhdestvóm Khristóvym!) or, more commonly, simply С Рождеством (S Rozhdestvóm!) for the informal Christmas greeting, while the traditional religious greeting is Khristós rozhdáyetsya! (Христос рождается, meaning "Christ is born!") and the traditional response is Slávite! (Cлавите!, meaning "Let us glorify Him!"); С Новым годом! (S Nóvym gódom!) - Happy New Year! in Russian.

Heughliche Winachten un 'n moi Nijaar in Low Saxon

Nollaig chridheil huibh in Scottish Gaelic

"Христос се роди!" answer: "Вaистину се роди!" ("Christ is Born!" "Indeed He's Born!") or: "Srećan Božić" ("Merry Christmas!"), also "Hristos se rodi!" in Serbian.

Veselé Vianoce a Šťastný Nový rok - Slovak language, "Merry Christmas and Happy New Year"

Vesele Božične Pražnike Srečno Novo Leto or Vesel Božič in srečno Novo leto in Slovene

Feliz Navidad y próspero Año Nuevo - Spanish lit. "Happy Nativity and prosperous New Year"

God Jul and (Och) Ett Gott Nytt År in Sweden

Geseënde Kersfees en 'n voorspoedige nuwe jaar - Blessed Christmas and a prosperous New Year - Afrikaans speaking South Africans

สุขสันต์วันคริสต์มาส และสวัสดีปีใหม่="Souksan wan Christmas lae Sawadi Pee Mai" in Thai

Mutlu Noeller - Turkish - "Happy Christmas"

З Різдвом Христовим (Z Rizdvom Khrystovym) or, when meeting in person, Христос народився! - Славімо Його! ("Khrystos narodyvsya! - Slavimo yoho!", lit. "Christ was born! - Praise be with Him!") in Ukrainian.

"Chúc mừng Giáng Sinh!" in Vietnamese, "Merry Christmas!"

Nadolig Llawen a Blwyddyn Newydd Dda - Wales (by Welsh speakers), "Merry Christmas and a Happy New Year"

Source : Wikipedia