How to Say “Hi, Grandpa” in Japanese

おじいちゃん、こんにちは
ojiichan, konnichiwa
The English phrase "hi, grandpa" is translated into Japanese as おじいちゃん、こんにちは (ojiichan, konnichiwa).
This phrase is a friendly and affectionate way to greet your grandfather.

Which one should you use?

おじいちゃん、こんにちは is a casual way to address a grandfather. An even more informal version can be achieved by dropping the 'O' at the beginning, resulting in じいちゃん、こんにちは.

How does it change in a sentence?

When writing this phrase, a comma (、) is often placed after the vocative, the title used to address the person, to separate the person being addressed from the rest of the greeting.

How do you pronounce it?

ojiichan, konnichiwa

Did you know?

  • In Japanese, おじいさん (grandfather) and おじさん (uncle) are distinguished only by the length of the 'i' sound, meaning a short vowel can accidentally change your grandpa into your uncle.
  • The phrase こんにちは actually originates from a longer sentence meaning 'today is…', which was historically followed by a comment on the day's weather or mood.
  • In very formal settings, a person might refer to their own grandfather using the word 祖父 (sofu), but they would never use this word when speaking directly to him.

Examples in context

  • おじいちゃん、こんにちは!元気?
    ojiichan, konnichiwa! genki?
    Hi, grandpa! How are you?
  • おじいちゃん、こんにちは。今日は暑いね。
    ojiichan, konnichiwa. kyou wa atsui ne.
    Hi, grandpa. It is hot today, isn't it?

Example conversation

A grandchild greets their grandfather at the door.

  1. 大翔 Hiroto

    おじいちゃん、こんにちは!
    Ojiichan, konnichiwa!
    Hi, grandpa!
  2. 美咲 Misaki

    こんにちは。よく来たね。
    Konnichiwa. Yoku kita ne.
    Hello. It's good to see you.
  3. 大翔 Hiroto

    いい天気だね。
    Ii tenki da ne.
    The weather is nice, isn't it?
  4. 美咲 Misaki

    そうだね。中に入りなさい。
    Sou da ne. Naka ni hairinasai.
    It is. Come on inside.
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Cory Everett
Cory EverettHelp 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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