How to Say “Happy Birthday” in Hiragana (Japanese)

おたんじょうびおめでとうございます
otanjōbi omedetō gozaimasupolite
Happy birthday in hiragana is おたんじょうびおめでとう (otanjōbi omedetō) among friends and おたんじょうびおめでとうございます (otanjōbi omedetō gozaimasu) in polite speech. Both are fully written in hiragana in cards.
Meaning: birthday greeting (phrase)

Ways to say it

“happy birthday” in Japanese
Japanese Romanization Note
おたんじょうびおめでとうございます otanjōbi omedetō gozaimasu polite
おたんじょうびおめでとう otanjōbi omedetō casual

Friends often shorten it to おめでとう when the context is clear.

Is there a formal and an informal way to say it?

Add ございます when speaking to a boss, a teacher or an older person.

How does it change in a sentence?

たんじょうび (tanjōbi) means birthday and おめでとう (omedetō) means congratulations. The honorific お goes before たんじょうび.

Did you know?

  • Age twenty has its own word, はたち (hatachi), which is written only in hiragana in daily use and marks the start of adulthood in Japan.

Examples in context

  • おたんじょうびおめでとう、はなこ。
    Otanjōbi omedetō, Hanako.
    Happy birthday, Hanako.
  • おたんじょうびおめでとうございます、せんせい。
    Otanjōbi omedetō gozaimasu, sensei.
    Happy birthday, teacher.

Example conversation

Mio surprises her friend Hanako with a cake.

  1. Mio

    おたんじょうびおめでとう。
    Otanjōbi omedetō.
    Happy birthday.
  2. Hanako

    ありがとう、うれしい。
    Arigatō, ureshii.
    Thank you, I am happy.
  3. Mio

    ろうそくをふいてね。
    Rōsoku o fuite ne.
    Blow out the candles.
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Toni Kelly
Toni KellyHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.
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