こんにちは

AFRIKAANS veels geluk / goeie wense (formal)
ALBANIAN urimet
ALSATIAN gràtülierung
ARABIC mabrouk / tahani (literary arabic)
ARMENIAN chnorhavor / chnorhavorankhner
AZERI tebrikler
BAMBARA félicitation
BASQUE zorionak
BELARUSIAN Вiншую (vinšuju)
BENGALI abhinandon
BOBO félicitation
BOSNIAN čestitam (formal) / svaka cast (informal)
BRETON gourc'hemmenoù
BULGARIAN pozdravlénia
BURMESE gon pyute pa te
CATALAN felicitats
CORSICAN felicitazioni
CROAT cestitke
CZECH blahopřání / gratulace
DANISH tillykke
DUTCH gefeliciteerd
ESPERANTO gratulojn
ESTONIAN palju õnne
FAROESE tillukku
FINNISH onnittelut / onnea
FLEMISH gefeliciteerd
FRENCH félicitations
FRIULAN auguri
GALICIAN parabéns
GERMAN Glückwunsch
GREEK sinharitiria
GUARANÍ rogüerohory
HAITIAN CREOLE felisitasyon
HEBREW mazal tov
HINDI subhkamna
HUNGARIAN gratulálok (I)
gratulálunk (we)
ICELANDIC til hamingju
INDONESIAN selamat
IRISH GAELIC comhgháirdeachas
ITALIAN congratulazioni / felicitazioni
JAPANESE omedetô
KABYLIAN mabrouk
KHMER kyum chouee tre aw
KURDISH piroz dikim
LAO somseuï
LATIN I --> you (sing.) : tibi gratulor / we --> you (sing.) : tibi gratulamur
I --> you (plur.) : vobis gratulor / we --> you (plur.) : vobis gratulamur
LATVIAN apsveicu
LEBANESE mabrouk (or "tahani" in literary arabic)
LITHUANIAN laimingai / sveikinu
LOW SAXON efeliciteer
LUXEMBOURGEOIS félicitatiounen
MACEDONIAN cestitki
MALAGASY arahabaina
MALAY tahniah
MALTESE prosit
MAORI ka nui ngaa mihi
MONGOLIAN bayar hurgeye (Баяр хvргэе)
NORWEGIAN gratulerer
OCCITAN òsca
PERSIAN tabrik miguyam (formal) / mobârake, tabrik migam (informal)
POLISH gratulacje
PORTUGUESE parabéns
ROMANI baxtaripe
ROMANIAN felicitări
we --> you (plur.) = vă felicităm
I --> you (sing.) = te felicit
RUSSIAN pozdravlaiu
SARDINIAN in ora bona
SCOTTISH GAELIC meala-naidheachd ort (singular, familiar)
meala naidheacht oirbh (plural, respectful)
SERBIAN cestitam
SHONA makorokoto
SINDHI wadhayoon mubarkoon
SLOVAK blahozelania
SLOVENIAN čestitam ti
SOBOTA zobdone
SPANISH felicidades
SWAHILI ponguezi
SWEDISH grattis
TAMIL paratthoukal
TATAR kotlym sezne
THAI ขอแสดงความยินดีด้วย (kaw sadeng kwam yin dee duay)
TURKISH tebrikler / bravo
UDMURT dzéchkylaśko (on behalf on one person)
dzéchkylaśkom (on behalf of two or more persons)
UKRAINIAN Вітання
URDU mubarik ho
VIETNAMESE chóc mõng (VnTime font needed)
WALOON ("betchfessîs" spelling) proficiat
WELSH llongyfarchiadau
WEST INDIAN CREOLE on gwan woulo / ba mwen la men an lèw
YIDDISH masel tov