How to Say "Well, Well, Well" in Japanese

おやおや

oyaoya

The Japanese phrase for "well, well, well" is おやおや (oyaoya).

おやおや is used to express surprise, mild amusement or to signal that you have noticed something unexpected or suspicious.

Meaning: indicating consideration (intj)

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

This expression is informal. It is often used by older people or characters in fiction to express a sense of condescending curiosity or mild shock.

oyaoya

While おやおや is an interjection, its root おや is actually a noun meaning 'parent' or 'guardian' in other contexts, though the connection to the exclamation is purely phonetic coincidence.
In Japanese manga or anime, characters who use おやおや are often depicted as eccentric geniuses, powerful villains, or mischievous elderly mentors.
Using おやおや toward a social superior can be perceived as mocking or overly familiar, as it suggests the speaker is observing the superior's failure.

おやおや、こんなところにいたのか。
Oya oya, konna tokoro ni ita no ka.
Well, well, so this is where you were.
おやおや、これは驚いた。
Oya oya, kore wa odoroita.
Well, well, this is a surprise.
おやおや、また失敗したんですか？
Oya oya, mata shippai shitan desu ka?
Well, well, did you fail again?

A woman discovers her brother hiding a snack he wasn't supposed to eat.

陽葵 Himari

おやおや、大翔くん、隠れて食べてるの？
Oya oya, Hiroto-kun, kakurete tabeteru no?
Well, well, Hiroto, are you eating in hiding?
大翔 Hiroto

あ、陽葵姉さん、バレた。
A, Himari-neesan, bareta.
Ah, Himari, you caught me.
陽葵 Himari

おやおや、それはお母さんに言いつけちゃうぞ。
Oya oya, sore wa okaasan ni iitsukechau zo.
Well, well, I might have to tell Mom about that.
大翔 Hiroto

お願い、秘密にして！
Onegai, himitsu ni shite!
Please, keep it a secret!

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