How to say "constituent" in Japanese

• 有権者ゆうけんしゃCommon
  nounA person who has the right to vote, taken singly or collectively as the electorate. This is the word you want for 'constituent' — the people an elected official represents and is answerable to.
  その有権者ゆうけんしゃはメアリー・ジョンソンさんで、民主党みんしゅとう員いんであることが後あとになってわかりました。↗

  That voter, Mary Johnson, turned out to be a Democrat.
• 選挙人せんきょにんCommon
  nounA more formal, legal-flavored term for a qualified voter, also used for an elector in the United States presidential system; when you mean the people a politician represents, 有権者 is the word you want.

Both words cover 'constituent' only in the political sense of a represented voter: use 有権者 for a politician's constituents in ordinary contexts, and 選挙人 for formal or legal settings and for US presidential electors.

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

• 有権者ゆうけんしゃ(eligible) voter
• 選挙人せんきょにんvoter
• 構成体こうせいたいconstituent
• 構成員こうせいいんmembers
• 構成銘柄こうせいめいがらcomposite (e.g. index)