How to Say “Your Birthday” in Japanese

お誕生日
otanjōbi
The Japanese phrase for "your birthday" is お誕生日 (otanjōbi).
This phrase refers to the anniversary of the day a person was born. While it translates to "your birthday," in Japanese the possessive pronoun is often omitted when the context makes it clear whose birthday is being discussed.

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

The form お誕生日 is a polite way to refer to someone else's birthday.

How do you pronounce it?

otanjōbi

When do people say it?

When someone wishes you a happy birthday, you can show your appreciation by saying Arigatou! Tanjoubi omedetou!

Did you know?

  • For a first birthday, the custom of 一升餅 involves the baby carrying a large, heavy rice cake on their back to wish for a long and healthy life.
  • When celebrating a 60th birthday, known as 還暦, some people wear a red vest and hat to symbolize a 'rebirth' as the zodiac cycle completes.
  • In Japan, the 'birthday' of the Emperor is a national holiday called 天皇誕生日, and the entire country celebrates it regardless of who the current Emperor is.

Examples in context

  • 「なんでみんな私のことシカトするの?」「誰もシカトなんてしてないよ。ほら、今日はメアリーの誕生日でしょ?お誕生日おめでとう!」「おめでとう!」「おめでとう!」
    "Why's everybody ignoring me?" "No one's ignoring you, Mary. Look, today's your birthday, isn't it? Happy birthday!" "Happy birthday!" "Happy birthday!"
    This example shows how to use お誕生日 when wishing someone a happy birthday.
    Tatoeba #10183782 by small_snow, translation #10183789 by DJ_Saidez
  • お誕生日はいつですか。
    What is the date of your birthday?
    This sentence is useful for asking someone the date of their birthday using お誕生日.
    Tatoeba #1446092 by gracehero, translation #4426634 by LB
  • お誕生日はいつでいらっしゃいますか?
    When is your birthday?
    This example demonstrates a more formal way to ask when someone's birthday is using お誕生日.
    Tatoeba #13222290 by atitarev, translation #16997 by CK

Example conversation

陽太 and 陽葵 are talking about upcoming celebrations.

  1. 陽太 Yota

    お誕生日はいつですか?
    Otanjoubi wa itsu desu ka?
    When is your birthday?
  2. 陽葵 Himari

    来月の十日です。
    Raigetsu no tooka desu.
    It is the tenth of next month.
  3. 陽太 Yota

    じゃあ、お祝いをしましょう!
    Jaa, oiwai o shimashou!
    Then, let's celebrate!
  4. 陽葵 Himari

    ありがとうございます!
    Arigatou gozaimasu!
    Thank you very much!

Sources

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Eddie Bryan
Eddie BryanHelp 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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