How to Say “I Love You Sister” in Japanese

大好きだよ、お姉ちゃん
daisuki da yo, oneechan
To say "I love you sister" in Japanese, use 大好きだよ、お姉ちゃん (daisuki da yo, oneechan).
This phrase is an expression of affection used to tell an older sister that you love her. When addressing her, you typically use the title お姉ちゃん (oneechan) rather than her given name.

How do you pronounce it?

daisuki da yo, oneechan

Did you know?

  • The word お姉ちゃん (oneechan) is so ingrained in the language that it is frequently used to address women who are not your biological sister, such as an older female friend or a much older girl in a shop.
  • If you were to use the more intense phrase 愛してる (aishiteru) instead of 大好き (daisuki), it might sound unnaturally heavy or even dramatic for a sibling relationship. 大好き is the standard way to express a deep, warm fondness in a casual setting.
  • In Japanese culture, it is often considered more natural to express affection through actions or shared activities rather than the verbal phrase 大好き (daisuki). While the phrase is used, many siblings may actually show their bond through small acts of service or subtle gestures.

Examples in context

  • いつも感謝してるよ。大好きだよ、お姉ちゃん。
    Itsumo kansha shiteru yo. Daisuki da yo, oneechan.
    I'm always grateful to you. I love you, big sister.
  • 誕生日おめでとう。大好きだよ、お姉ちゃん。
    Tanjoubi omedetou. Daisuki da yo, oneechan.
    Happy birthday. I love you, big sister.

Example conversation

Kenta gives his sister a small gift on her birthday.

  1. 健太 Kenta

    これ、誕生日プレゼント。
    Kore, tanjoubi purezento.
    This is a birthday present.
  2. 美咲 Misaki

    わあ、ありがとう、健太!
    Waa, arigatou, Kenta!
    Wow, thank you, Kenta!
  3. 健太 Kenta

    大好きだよ、お姉ちゃん。
    Daisuki da yo, oneechan.
    I love you, big sister.
  4. 美咲 Misaki

    嬉しい、ありがとうね。
    Ureshii, arigatou ne.
    I'm so happy, thank you.
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Maureen Angela
Maureen AngelaHelp 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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