In Albanian, by Qerimi: Ditelindje

This language is spoken mostly in Albania, Serbia, Kosovo, Macedonia, Montenegro, Greece, Turkey, Italy.

In Amazigh, by Awal : Thalalith thamagazeth

This language is spoken in Algeria.

In Arabic (العربية), by Sadok : عيد ميلاد

This language is spoken in the Arab world.

In Basque (Euskara), by Karmele, Iñigo and Pierre: Urtebetetzea, Urtebete, Urteurrena,

This language is spoken in the Basque country, Euskal Herria (France, Spain).

Note: Happy Birthday is “Urtebetetze zoriontsua”.

In Breton (Brezhoneg), by Luc: Deiz-ha-bloaz, and by Gwen : gouel-blez.

This language is spoken in Brittany (North-West of France).

Note by Luc: Happy Birthday is “kalz a vloavezhioù all”, which literally translates as “many more years”.

In Catalan, by David: Aniversari

This language is spoken in Spain (Catalonia, Valencian Community, Balearic Islands), France (Pyrénnées Orientales), Andorra, Italy (Sardinia).

Note: “Happy Birthday” is “Per molts anys”.

In Croatian, by Vanda: Rođendan

This language is spoken in Croatia.

In Chukchi, by Charles Weinstein: U’retkin y’lonet

This language is spoken in Chukotka (Russia).

En Dutch, by Monique : verjaardag

This language is spoken in the Netherlands and in the belgian area of Flanders.

Note : “Happy Birthday” is “gelukkige verjaardag”.

In Esperanto, by GoBois, R. Platteau, Marion QuenutAdd contact and karinesperanto: naskiĝtago, datreveno

Note: Jean-Claude Thumerelle gives a slightly different spelling :  naskigxtago, a spelling that was invented because some computers didn’t have the letters ĝ or ŝ on their keyboard, where they were remplaced by gx, sx, etc.

This language is spoken all over the world.

In Fala, by Eusebio Martín: Cumplianus

This language is spoken in the North of Extremadura, Spain.

In French, by Michel: Anniversaire

Note: “Happy Birthday” is “Joyeux anniversaire”.

In Fula (Pulaar, Fulfulde), by Tafsir Balde : Maanditaare

This language is spoken in Cameroon, in the Centrafrican Republic, in Chad, Sudan, Nigeria, Niger, Burkina Faso, Mali, Mauritania, Senegal, Gambia, Guinea, Bissau Guinea, Liberia, Sierra Leone, Ghana, Togo and Benin.

In Futunan, by Hermel: aso tupu

Futunan is spoken in Wallis and Futuna.

Note: litterally “day of birth”.

In German, by Marie-Laure: Geburtstag

This language is spoken in Germany, Belgium, Austria, eastern Switzerland.

In Greek (modern), by Paula Escabia Román : Τα γενέθλια, xρόνια πολλά

This language is spoken in Greece, Cyprus, Albania, Turkey and to a lesser extent in Italy.

Note: “Xρόνια πολλά” means “Happy Birthday”.

In Greenlandic (Kalaallisut), by Kaalinguaq: Inuuik, Inuuinni

This language is spoken in Greenland.

Note: “Happy Birthday” is “Inuinni pilluarit”.

In hebrew, by Itay: יום הולדת

Hebrew is spoken in Israël.

Notes :

– Pronounce “yom houlèdèt”.

– It is also often spelt יומולדת, which is not (yet) academic.

In Hindi, by Michel: Janmadin, Janmadivas (जन्मदिन, जन्मदिवस)

This language is spoken in India (mainly North), and also in Mauritius, Fiji, Trinidad, etc.

Note: “Happy Birthday” is “Janmadin mubārak”.

In Icelandic, by Maxime: Afmæli

This language is spoken in Iceland.

In Italian, by Viviane: Compleano

In Hungarian, by François-Régis Rolland : Születésnap

This language is spoken in Hungary, Romania, Slovakia and Serbia

Notes :
– coloquially also told Szülinap
– “Happy birthday” is “Boldog születésnapot kívánok”.

In Igbo, by Françoise Ugochukwu: emume ncheta

This language is spoken in Nigeria.

In Japanese, by Alain Kervern and Cyril: Tanjôbi (誕生日)

This language is spoken in Japan.

Note: “Happy Birthday” is “O-tanjôbi omedetô” (お誕生日おめでとう).

In Kashmiri, by Hilal Ahmed Sheikh: Zaa ye doh

This language is spoken in Kashmir, in the north of India

In Kok Borok (Kokborok, Tripuri), by Joseph Pulinthanath: Achaima Sal

Note: litterally “Birth Day”.

This language is spoken in Tripura, North-East India.

In Malagasy, by Salohy and Marie Louise : Tsingerin-taona or tsingerin-taona

Malagasy is spoken in Madagascar.

Note: “Happy birthday” is “Arabaina nahatratra ny tsigerin-taonanao ianao”.

In Norwegian (bokmål), by Tomek : fødselsdag

Norwegian is spoken in Norway.

In Ntoumou, by Mariano Nsue : Adjaa mbu

This language is spoken in Cameroon and Equatorial Guinea.

In Occitan, by Marion Quenut : Anniversari

This language is spoken in the south of France, the val d’Aran, and the occitan valleys in Italy.

In Portuguese, by Regina Giglio: Aniversàrio

This language is spoken in Portugal, Brazil, Guinea-Bissau, Cape Verde, Angola, Mozamibique, Timor.

Note: “Happy Birthday” is “Feliz aniversàrio”.

In Provençal, by Jean Charles Tabacchi : Anniversàri

This language is spoken in southern french area of Provence.

Note : The usual way of wishing a happy birthday is “Urous anniversàri e longo mai”.

In Quechua, by Gloria Caceres: P’unchawniyki, Suntuyki

This language is spoken in Peru, Bolivia, Ecuador, and nortwestern Argentina.

In Slovak, by Andrea: Narodeniny, Výročie

This language is spoken in Slovakia.

In Spanish, by Michel: Cumpleaños

Note: “Happy Birthday” is “Feliz cumpleaños”.

In Swahili, by Marie-Laure: Siku ya kuzaliwa

This language is spoken in Kenya, Uganda, Tanzania, and D.R. Congo.

In Swedish, by Aurélien : Födelsedag

This language is spoken in Sweden and a part of Finland.

Note: to wish someone a “Happy birthday”, Swedes just say “Grattis”, a short for “Grattis på din födelsedag” (Congratulations on your birthday).

In Vietnamese, by TRAN ngoc-anh : sinh-nhut

This language is spoken in Vietnam, in France, in the USA, etc.

In the north of the country, they write sinh-nhât

In Wallisian, by Claire: Aho tupu

Note: litteraly “Birth Day”.

This language is spoken in Wallis (Wallis and Futuna).

In Wolof, by Adja : bèss bou déloussi

Wolof is spoken in Senegal