and here courtesy of wikipedia a list of birthday songs for the birthday boy :) -

These are translations or variations sung to the tune of the traditional English language song.

    * Arabic countries: "Sana helwa ya gameel"[1]

    * Argentina: "Que los cumplas feliz"[2]

          o "El payaso Piln-Plin" (children song with the same melody)

    * Brazil: "Parabéns pra você"

    * Chile: "Cumpleaños feliz"[3]

          o "Cumpleaños fatal" (parody)[4]

    * China: "Zhu ni shengri kuaile"[5] (祝 你 生日 快乐)

    * Croatia: "Sretan rođendan ti"[6]

    * Finland: "Paljon onnea vaan"[7]

    * France: "Joyeux anniversaire"

    * Germany: "Zum Geburtstag viel Glück"

    * Hong Kong:

          o Happy Birthday To You commonly sung in English

          o "Sang Yat Go" (生日歌): Happy Birthday To You in Cantonese lyrics

          o "zuk sau go" (祝寿歌)

    * India: "Bar Bar Din Yeh Aaye" (also see below)

    * "Happy Birthday to you", in English

    * Italy: "Tanti auguri a te"[7]

    * Israel:

          o Happy Birthday (Hebrew: יום הולדת שמח‎ Yom Huledet Same'ach)

    * Iceland: "Hann á afmæli í dag"[7]

    * Japan:

          o "otanjōbi omedetō"

          o Happy Birthday to You often sung in English

    * Korea: "saeng-il chukhahamnida"

    * Malaysia:

          o "Selamat Hari Jadi"

          o "Allah selamatkan kamu" (Traditional version)

    * Netherlands: "Een fijne verjaardag voor jou"

New Zealand: "hari huritau ki a koe" (Maori)

    * Philippines: "Maligáyang Bátì"[7]

          o Happy Birthday to You also sung in English

    * Slovenia: "Vse najboljše za te"

    * Spain: "Cumpleaños Feliz" (also see below)

    * Switzerland - Swiss German: "Zum Geburtstag viel Glück"

      * Tanzania: "Hongera Hongera"

    * Turkey: "İyiki doğdun (isim)"

    * Uruguay: "Que los cumplas feliz"

    * Wales: "Penblwydd hapus i chi"

    * Serbia - Cyrillic alphabet: "Срећан ти рођендан!"

    * Serbia: "Srećan ti rođendan!"