How to say "cookie" in Japanese

• クッキーCommon
  nounThe standard word for a cookie: a small, flat, usually sweet baked treat. This is the word you will hear and use in everyday contexts such as buying or baking cookies.
  彼女かのじょは夕食ゆうしょくまで空腹くうふくをしのぐためいくらかクッキーを食たべた。↗

  She had some cookies to stay her hunger until dinner.
• ビスケットCommon
  nounAlso covers the 'cookie' sense via its gloss 'cookie; biscuit', but its core meaning is biscuit — a crisp, plain-ish baked snack. A natural choice when biscuit is at least as close as cookie.
  「ママ、ビスケット食たべてもいいでしょ」「だめです。間食かんしょくはいけません」↗

  "Mom, please can I have a biscuit?" "No, you can't; you shouldn't eat between meals."
• クーキーCommon
  nounA spelling variant of クッキー glossed 'cookie; cooky'. It is a poor, marginal way to say 'cookie' — in practice you should almost always write クッキー instead.

For the baked treat, 「クッキー」 is the usual everyday word; 「ビスケット」 also works and leans toward 'biscuit', while 「クーキー」 is a marginal spelling variant of 「クッキー」 that is rarely the word you want.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• クッキーcookie
• ビスケットcookie
• クーヘンcake
• クーキーcookie