How to say "proxy" in Japanese

• 代理だいりJLPT N3approx.Common
  suru verb, transitive verb, no-adjectiveThe general noun for acting in someone's place: representation or agency. Use it when 'proxy' refers to the act or arrangement itself, as in attending a meeting by proxy.
  明日あす私は忙いそがしいです。だから、私の代理だいりをする人ひとを手配てはいしました。↗

  I'm engaged tomorrow, so I've arranged for someone else to take my place.
• 替え玉かえだまCommon
  nounReally a stand-in or double: a person who takes another's place, often covertly, as when one person takes an exam for another. For ordinary representation it is not the word you want.
  警察けいさつが追おっていたのは替え玉かえだまで、その間あいだに真犯人しんはんにんを逃のがしてしまった。↗

  The police followed a red herring while they let the true criminal escape.
• 名代みょうだいCommon
  nounA proxy or representative acting in another's name. It suits contexts where someone stands in for a person or organization, appearing or speaking in their stead.
  私の一番いちばん上うえの兄あにが父ちちの名代みょうだいとしてその会合かいごうに出席しゅっせきした。↗

  My oldest brother attended the meeting on behalf of our father.
• 代理人だいりにんCommon
  nounThe person who acts as another's agent or proxy: a deputy or authorized representative. When 'proxy' means the individual empowered to act on someone's behalf, this is the word you want.
  すぐにあなたの代理人だいりにんに連絡れんらくを取とりなさい。↗

  Get in touch with your agent right away.
• 代人だいにんCommon
  nounA substitute or deputy: someone who takes over another's duties or fills their place. Closer to 'substitute' or 'deputy' than to 'agent'; choose it when 'proxy' means someone standing in for another.

Use 代理 for representation or agency in the abstract and 代理人 for the person so acting; 名代 is a representative in another's name, 代人 a substitute or deputy, and 「替え玉」 a stand-in or double.

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

• 代理だいりrepresentation
• 替え玉かえだまstand-in
• 名代みょうだいproxy
• 代理人だいりにんproxy
• 代人だいにんsubstitute
• 委任状いにんじょうcommission
• プロキシproxy
• 代員だいいんproxy
• 代理者だいりしゃproxy
• 代行者だいこうしゃagent
• 代わりかわりstand-in
• 串くしproxy (computer server)
• 代打だいだperforming a duty in place of someone else