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Supreme Court of Japan

  • Japanese: 最高裁判所

Governs Japan

Official website (courts.go.jp) Report a problem with this page

Source: japaneselawtranslation.go.jp, checked

Who sits on it

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Sources for who sits on it

  • Chief Justice of the Supreme Court japaneselawtranslation.go.jp · checked
  • Yukihiko Imasaki as Chief Justice of the Supreme Court sangiin.go.jp · checked
  • Justice of the Supreme Court japaneselawtranslation.go.jp · checked
  • Akira Ojima as Justice of the Supreme Court sangiin.go.jp · checked
  • Eriko Watanabe as Justice of the Supreme Court sangiin.go.jp · checked
  • Hirofumi Ata as Justice of the Supreme Court sangiin.go.jp · checked
  • Junichi Takasu as Justice of the Supreme Court sangiin.go.jp · checked
  • Kazumi Okamura as Justice of the Supreme Court sangiin.go.jp · checked
  • Kimihiro Ishikane as Justice of the Supreme Court sangiin.go.jp · checked
  • Makoto Nakamura as Justice of the Supreme Court sangiin.go.jp · checked
  • Mamoru Miura as Justice of the Supreme Court sangiin.go.jp · checked
  • Masahiro Hiraki as Justice of the Supreme Court sangiin.go.jp · checked
  • Masami Okino as Justice of the Supreme Court sangiin.go.jp · checked
  • Michiharu Hayashi as Justice of the Supreme Court sangiin.go.jp · checked
  • Mitsuko Miyagawa as Justice of the Supreme Court sangiin.go.jp · checked
  • Ryosuke Yasunami as Justice of the Supreme Court sangiin.go.jp · checked
  • Toru Sakai as Justice of the Supreme Court sangiin.go.jp · checked
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What it can do

  • Judicial power

    Judicial power is vested in the Supreme Court and in lower courts established by law (Art. 76). The Court is the court of last resort.

  • Constitutional review

    The Supreme Court is the court of last resort with power to determine the constitutionality of any law, order, regulation or official act (Art. 81).

  • Rule-making power

    The Court makes rules of procedure, practice, attorneys and the internal discipline of courts (Art. 77).

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Sources for what it can do

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Sources

  • japaneselawtranslation.go.jp · checked Ministry of Justice, Japanese Law Translation, The Constitution of Japan (Chapters I, IV, V, VI), read 2026-10-12: existence, composition and role of the Monarchy, Diet, House of Representatives, House of Councillors, Cabinet and Supreme Court. English names follow the bodies' own English sites (shugiin.go.jp, sangiin.go.jp, japan.kantei.go.jp, courts.go.jp). For: Supreme Court of Japan
  • shugiin.go.jp · checked Official Japanese names from the National Diet, Cabinet, Courts and party sites (shugiin.go.jp, sangiin.go.jp, kantei.go.jp, courts.go.jp), read 2026-10-12: Japanese official names of authorities, offices and parties. For: Supreme Court of Japan in Japanese
  • japaneselawtranslation.go.jp · checked Ministry of Justice, Japanese Law Translation, The Constitution of Japan, read 2026-10-12: powers with article numbers as cited in each description. For: Judicial power, Constitutional review, Rule-making power
  • japaneselawtranslation.go.jp · checked Ministry of Justice, Japanese Law Translation, The Constitution of Japan, read 2026-10-12 (Art. 2, 6, 7, 45, 46, 58, 66-68, 79); seat counts 465 and 248 and the electoral systems from the Public Offices Election Act as summarised on the Diet sites (shugiin.go.jp/internet/index.nsf/html/index_e.htm, sangiin.go.jp/eng/). Cabinet offices: Prime Minister's Office, List of Ministers, 105th cabinet reshuffled 2026-09-17 (japan.kantei.go.jp/105/meibo/daijin/index.html). For: Chief Justice of the Supreme Court, Justice of the Supreme Court
  • sangiin.go.jp · checked Current terms from the House of Representatives roster (shugiin.go.jp 議員一覧, as of 2026-09-28), House of Councillors roster (sangiin.go.jp, as of 2026-10-12) with group and term-expiry date, Cabinet (japan.kantei.go.jp/105/meibo/daijin/index.html, inaugurated 2026-09-17; former list /105/meibo_a/ inaugurated 2026-02-18), Speakers (shugiin.go.jp English 'Officers of the House', as of 2026-10-05), House of Councillors officers (sangiin.go.jp yakuin, 2026-10-12), Supreme Court justices (courts.go.jp 最高裁判所の裁判官), Emperor (kunaicho.go.jp). Member start dates are left empty because the rosters do not give them; party is the member's in-house group mapped to its party (groups mixing party and non-party members are mapped to the party). Read 2026-10-12. For: Yukihiko Imasaki as Chief Justice of the Supreme Court, Akira Ojima as Justice of the Supreme Court, Eriko Watanabe as Justice of the Supreme Court, Hirofumi Ata as Justice of the Supreme Court, Junichi Takasu as Justice of the Supreme Court and 10 more

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