How to Say “Hi” in Japanese (Not Formal)

やあ
yaacasual
The casual way to say "hi" in Japanese is やあ (yaa). Friends also say おっす (ossu) and どうも (doumo).
Meaning: casual greeting (phrase)

Ways to say it

“hi” in Japanese
Japanese Romanization Note
やあ yaa casual
おっす ossu casual, mostly male
どうも doumo casual, short

やあ (yaa) is friendly and easy for any speaker. おっす (ossu) is a short, energetic greeting among friends and is mostly used by men. どうも (doumo) works as a light "hi" or "thanks" with people you know a little.

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

With a boss, a teacher or a stranger, use こんにちは (konnichiwa) instead. Casual greetings can sound rude to those people.

How do you pronounce it?

Say やあ (yaa) with a long a sound, like "yah".

Did you know?

  • The greeting おっす (ossu) is known from martial arts clubs, where it is a short, strong sound of respect and effort.

Examples in context

  • やあ、元気?
    Yaa, genki?
    Hi, how are you?
  • おっす!久しぶり。
    Ossu! Hisashiburi.
    Hey! Long time no see.
  • どうも、また会ったね。
    Doumo, mata atta ne.
    Hi, we meet again.

Example conversation

Shun runs into his friend Kota on the street.

  1. Shun

    やあ、コウタ!
    Yaa, Kouta!
    Hi, Kota!
  2. Kota

    おっす、元気?
    Ossu, genki?
    Hey, how are you?
  3. Shun

    うん、元気だよ。
    Un, genki da yo.
    Yes, I am fine.
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Lois Isabelle
Lois IsabelleHelp 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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