This is a list of members of the Diet of Japan. The Diet has two chambers: the House of Councillors (upper house) and the House of Representatives (lower house). Councillors serve six year terms, with half being elected every three years. Representatives serve terms of up to four years, but the House of Representatives can be dissolved, causing a shorter term (snap election).

House of Representatives

Members of the House of Representatives elected in the 43rd general election (2003)
Members of the House of Representatives elected in the 44th general election (2005)
Members of the House of Representatives elected in the 45th general election (2009)
Members of the House of Representatives elected in the 46th general election (2012)
Members of the House of Representatives elected in the 47th general election (2014)
Members of the House of Representatives elected in the 48th general election – Current List (2017)
Members of the House of Representatives elected in the 49th general election (2021)

Composition

Composition of the House of Representatives of Japan
(as of 15 December 2023, 212th National Diet)[1]
elected by 2021 Japanese general election (term: 31 October 2021 – 30 October 2025 or earlier dissolution)
In-House Groups
[innai] kaiha
Parties Seats
by parties
Seats
Government 293
Liberal Democratic Party
Jiyūminshutō / Mushozoku no Kai
Liberal Democratic Party / Association of independents
Liberal Democratic Party (LDP)260 261
Independent1
Komeito
Kōmeitō
Komeito 32 32
Opposition 165
The Constitutional Democratic Party of Japan
Rikken Minshutō・Mushozoku
Constitutional Democratic Party / Independents
Constitutional Democratic Party (CDP) 94 96
Social Democratic Party (SDP) 1
Independent 1
Nippon Ishin (Japan Innovation Party)
Nippon Ishin no Kai
Nippon Ishin no Kai
Nippon Ishin no Kai 41 41
Japanese Communist Party
Nihon Kyōsantō
Japanese Communist Party (JCP) 10 10
Democratic Party for the People
Kokumin Minshutō・Mushozoku Club
Democratic Party for the People / Independent Club
Democratic Party for the People (DPFP) 7 7
Yūshi no Kai
Yūshi no Kai
Independent 4 4
Association for Realizing Free Education
Kyōiku mushō-ka o jitsugen suru Kai
Association for Realizing Free Education 4 4
Reiwa Shinsengumi
Reiwa Shinsengumi
Reiwa Shinsengumi 3 3
Independents and Vacancies 7
Independents (not member of a caucus)
Mushozoku
LDP (Speaker: Fukushiro Nukaga)1 6
CDP (Vice-Speaker: Banri Kaieda)1
Independents (not member of a party) 4
Vacant
Ketsuin
Shimane 1st District1 1
Total 465

List of members by parliamentary group and constituency. There are usually translations and abbreviations for parliamentary groups (会派, kaiha, current House of Representatives website translation: "In-House Group") used on the English pages of the House of Representatives website,[2]

  •   LDP
  •   Kōmeitō
  •   CDP
  •   DPFP
  •   JCP
  •   Nippon Ishin
  •   Group of Independents
  •   SDP
  •   Kibo
  •   Independents

Notes:

  • Not all members of a parliamentary group are necessarily members of the associated party/parties if any, and vice versa. For example, the Speaker and Vice-Speaker of the House of Representatives are independents in terms of parliamentary group membership, but not independents in terms of party membership.
  • The count of terms as given by the House of Representatives follows the usual way of counting them in Japan by number of won elections (tōsen kaisū) which is not necessarily identical to election periods of the House of Representatives. For example, former member Nobutaka Machimura served for two terms as a member during the (2009–2012) 45th election period of the House of Representatives: one as member for the Hokkaidō proportional constituency from the general election in August 2009 to his resignation in September 2010, and one as member for constituency number 5 in Hokkaidō from the by-election in October 2010 to dissolution in November 2012. Among other things, the election count determines the seating within a parliamentary group, the more senior members by this measure sit in the back.
  • Most proportional members of the House of Representatives have been deleted.
Members of the House of Representatives (as of April 26, 2021)[3]
ConstituencyElected MembersParliamentary groupNotes

Hokkaido

12 single-member and 8 proportional representation seats.

Hokkaido-1st Daiki MichishitaConstitutional Democratic
Hokkaido-2nd Kenko MatsukiConstitutional Democratic
Hokkaidō–3rd Satoshi AraiConstitutional Democratic
Hokkaidō–4th Hiroyuki NakamuraLiberal Democratic
Hokkaidō–5th Yoshiaki WadaLiberal Democratic
Hokkaidō–6th Takahiro SasakiConstitutional Democratic
Hokkaidō–7th Yoshitaka ItōLiberal Democratic
Hokkaidō–8th Seiji OsakaConstitutional Democratic
Hokkaidō–9th Manabu HoriiConstitutional Democratic
Hokkaidō–10th Hisashi InatsuKōmeitō
Hokkaidō–11th Kaori IshikawaConstitutional Democratic
Hokkaidō–12th Arata TakebeLiberal Democratic

Hokkaido block

Hokkaidō block Hidemichi SatōKōmeitō
Hokkaidō block Hiroshi KamiyaConstitutional Democratic
Hokkaidō block Maki IkedaConstitutional Democratic
Hokkaidō block Hiranao HondaConstitutional Democratic
Hokkaidō block Tatsumaru YamaokaConstitutional Democratic
Hokkaidō block Kōichi WatanabeLiberal Democratic
Hokkaidō block Takako SuzukiLiberal Democratic
Hokkaidō block Toshimitsu FunahashiLiberal Democratic

Tōhoku

23 single-member and 13 proportional representation seats.

Aomori Prefecture

Aomori–1st Jun TsushimaLiberal Democratic
Aomori–2nd Tadamori ŌshimaLiberal Democratic
Aomori–3rd Jiro KimuraLiberal Democratic

Iwate Prefecture

Iwate–1st Takeshi ShinaConstitutional Democratic
Iwate–2nd Shun'ichi SuzukiLiberal Democratic
Iwate–3rd Ichirō OzawaConstitutional Democratic

Miyagi Prefecture

Miyagi–1st Tōru DoiLiberal Democratic
Miyagi–2nd Ken'ya AkibaLiberal Democratic
Miyagi–3rd Akihiro NishimuraLiberal Democratic
Miyagi–4th Shintarō ItōLiberal Democratic
Miyagi–5th Jun AzumiConstitutional Democratic
Miyagi–6th Itsunori OnoderaLiberal Democratic

Akita Prefecture

Akita–1st Hiroyuki TogashiLiberal Democratic
Akita–2nd Katsutoshi KanedaLiberal Democratic
Akita–3rd Nobuhide MinorikawaLiberal Democratic

Yamagata Prefecture

Yamagata–1st Toshiaki EndōLiberal Democratic
Yamagata–2nd Norikazu SuzukiLiberal Democratic
Yamagata–3rd Ayuko KatoLiberal Democratic

Fukushima Prefecture

Fukushima–1st Emi KanekoConstitutional Democratic
Fukushima–2nd Takumi NemotoLiberal Democratic
Fukushima–3rd Kōichirō GenbaConstitutional Democratic
Fukushima–4th Ichirō KankeLiberal Democratic
Fukushima–5th Masayoshi YoshinoLiberal Democratic

Tōhoku Block

Tohoku Block Akinori EtoLiberal Democratic
Tohoku Block Yoshitami KameokaLiberal Democratic
Tohoku Block Takashi FujiwaraLiberal Democratic
Tohoku Block Hinako TakahashiLiberal Democratic
Tohoku Block Kentaro UesugiLiberal Democratic
Tohoku Block Manabu TerataConstitutional Democratic
Tohoku Block Takashi MidorikawaConstitutional Democratic
Tohoku Block Shinji OgumaConstitutional Democratic
Tohoku Block Akiko OkamotoConstitutional Democratic
Tohoku Block Makoto YamazakiConstitutional Democratic
Tohoku Block Yukihiko AkutsuConstitutional Democratic
Tohoku Block Yoshihisa InoueKōmeitō
Tohoku Block Chizuko TakahashiJCP

North Kanto(Kita Kanto)

32 single-member and 19 proportional representation seats.

Ibaraki Prefecture

Ibaraki–1st Yoshinori TadokoroLiberal Democratic
Ibaraki–2nd Fukushirō NukagaLiberal Democratic
Ibaraki–3rd Yasuhiro HanashiLiberal Democratic
Ibaraki–4th Hiroshi KajiyamaLiberal Democratic
Ibaraki–5th Akimasa IshikawaLiberal Democratic
Ibaraki–6th Ayano KinimitsuLiberal Democratic
Ibaraki–7th Kishirō NakamuraConstitutional Democratic

Tochigi Prefecture

Tochigi–1st Hajime FunadaLiberal Democratic
Tochigi–2nd Akio FukudaConstitutional Democratic
Tochigi–3rd Kazuo YanaLiberal Democratic
Tochigi–4th Tsutomu SatōLiberal Democratic
Tochigi–5th Toshimitsu MotegiLiberal Democratic

Gunma Prefecture

Gunma–1st Asako OmiLiberal Democratic
Gunma–2nd Toshirō InoLiberal Democratic
Gunma–3rd Hiroyoshi SasagawaLiberal Democratic
Gunma–4th Tatsuo FukudaLiberal Democratic
Gunma–5th Yūko ObuchiLiberal Democratic

Saitama Prefecture

Saitama–1st Hideki MuraiLiberal Democratic
Saitama–2nd Yoshitaka ShindōLiberal Democratic
Saitama–3rd Hitoshi KikawadaLiberal Democratic
Saitama–4th Yasushi HosakaLiberal Democratic
Saitama–5th Yukio EdanoConstitutional Democratic
Saitama–6th Atsushi OshimaConstitutional Democratic
Saitama–7th Saichi KamiyamaLiberal Democratic
Saitama–8th Masahiko ShibayamaLiberal Democratic
Saitama–9th Taku ŌtsukaLiberal Democratic
Saitama–10th Taimei YamaguchiLiberal Democratic
Saitama–11th Ryūji KoizumiLiberal Democratic
Saitama–12th Atsushi NonakaLiberal Democratic
Saitama–13th Shinako TsuchiyaLiberal Democratic
Saitama–14th Hiromi MitsubayashiLiberal Democratic
Saitama–15th Ryōsei TanakaLiberal Democratic

Kitakanto block

Kitakantō block Kazuyuki NakaneLiberal Democratic
Kitakantō block Keiko NagaokaLiberal Democratic
Kitakantō block Hideki MakiharaLiberal Democratic
Kitakantō block Yasutaka NakasoneLiberal Democratic
Kitakantō block Akio SatoLiberal Democratic
Kitakantō block Kimichika HyakutakeLiberal Democratic
Kitakantō block Yutaka KandaLiberal Democratic
Kitakantō block Kaichi HasegawaConstitutional Democratic
Kitakantō block Yuriko YamakawaConstitutional Democratic
Kitakantō block Keinin HorikoshiConstitutional Democratic
Kitakantō block Masako ŌkawaraConstitutional Democratic
Kitakantō block Rentaro TakagiConstitutional Democratic
Kitakantō block Toshikazu MoritaConstitutional Democratic
Kitakantō block Yamato AoyamaConstitutional Democratic
Kitakantō block Yasuko KomiyamaConstitutional Democratic
Kitakantō block Keiichi IshiiKōmeitō
Kitakantō block Mitsunari OkamotoKōmeitō
Kitakantō block Tetsuya ShiokawaJCP
Kitakantō block Satoshi AsanoDPFP

South Kanto(Minami Kanto)

33 single-member and 22 proportional representation seats.

Chiba Prefecture

Chiba-1st Hiroaki KadoyamaLiberal Democratic
Chiba-2nd Takayuki KobayashiLiberal Democratic
Chiba-3rd Hirokazu MatsunoLiberal Democratic
Chiba-4th Yoshihiko NodaConstitutional Democratic
Chiba-5th Kentaro SonouraLiberal Democratic
Chiba-6th Hiromichi WatanabeLiberal Democratic
Chiba-7th Ken SaitoLiberal Democratic
Chiba-8th Yoshitaka SakuradaLiberal Democratic
Chiba-9th Masatoshi AkimotoLiberal Democratic
Chiba-10th Motoo HayashiLiberal Democratic
Chiba-11th Eisuke MoriLiberal Democratic
Chiba-12th Yasukazu HamadaLiberal Democratic
Chiba-13th Takaki ShirasukaIndependent

Kanagawa Prefecture

Kanagawa-1st Jun MatsumotoIndependent
Kanagawa-2nd Yoshihide SugaLiberal Democratic
Kanagawa-3rd Hachiro OkonogiLiberal Democratic
Kanagawa-4th Yuki WasedaConstitutional Democratic
Kanagawa-5th Manabu SakaiLiberal Democratic
Kanagawa-6th Yochiro AoyagiConstitutional Democratic
Kanagawa-7th Keisuke SuzukiLiberal Democratic
Kanagawa-8th Kenji EdaConstitutional Democratic
Kanagawa-9th Ryu HirofumiIndependent
Kanagawa-10th Kazunori TanakaLiberal Democratic
Kanagawa-11th Shinjiro KoizumiLiberal Democratic
Kanagawa-12th Tomoko AbeConstitutional Democratic
Kanagawa-13th Akira AmariLiberal Democratic
Kanagawa-14th Jiro AkamaLiberal Democratic
Kanagawa-15th Taro KonoLiberal Democratic
Kanagawa-16th Hiroyuki YoshiieLiberal Democratic
Kanagawa-17th Karen MakishimaLiberal Democratic
Kanagawa-18th Daishiro YamagiwaLiberal Democratic

Yamanashi Prefecture

Yamanashi-1st Katsuhito NakajimaConstitutional Democratic
Yamanashi-2nd Noriko HoriuchiLiberal Democratic

Minamikanto block

Minamikanto block Minoru DebataLiberal Democratic
Minamikanto block Shinichi NakataniLiberal Democratic
Minamikanto block Norihiro NakayamaLiberal Democratic
Minamikanto block Tsuyoshi HoshinoLiberal Democratic
Minamikanto block Tomohiro YamamotoLiberal Democratic
Minamikanto block Hidehiro MitaniLiberal Democratic
Minamikanto block Tetsuya KimuraLiberal Democratic
Minamikanto block Hiroshi UenoLiberal Democratic
Minamikanto block Yukio UbukataConstitutional Democratic
Minamikanto block Kazuma NakataniConstitutional Democratic
Minamikanto block Go ShinoharaConstitutional Democratic
Minamikanto block Shin MiyakawaConstitutional Democratic
Minamikanto block Kazuma OkajimaConstitutional Democratic
Minamikanto block Kaname TajimaConstitutional Democratic
Minamikanto block Hajime YatagawaConstitutional Democratic
Minamikanto block Yuichi GotoConstitutional Democratic
Minamikanto block Soichiro OkunoConstitutional Democratic
Minamikanto block Shigeyuki TomitaKōmeitō
Minamikanto block Noriko FuruyaKōmeitō
Minamikanto block Kazuo ShiiJCP
Minamikanto block Kimie HatanoJCP
Minamikanto block Seiichi KushidaIshin

Tokyo

25 single-member and 17 proportional representation seats.

Tokyo–1st Banri KaiedaConstitutional Democratic
Tokyo–2nd Kiyoto TsujiLiberal Democratic
Tokyo–3rd Hirotaka IshiharaLiberal Democratic
Tokyo–4th Masaaki TairaLiberal Democratic
Tokyo–5th Kenji WakamiyaLiberal Democratic
Tokyo–6th Takayuki OchiaiConstitutional Democratic
Tokyo–7th Akira NagatsumaConstitutional Democratic
Tokyo–8th Nobuteru IshiharaLiberal Democratic
Tokyo–9th Isshu SugawaraLiberal Democratic
Tokyo–10th Hayato SuzukiLiberal Democratic
Tokyo–11th Hakubun ShimomuraLiberal Democratic
Tokyo–12th Akihiro OtaKomeito
Tokyo–13th Ichiro KamoshitaLiberal Democratic
Tokyo–14th Midori MatsushimaLiberal Democratic
Tokyo–15th Tsukasa AkimotoIndependent
Tokyo–16th Hideo OnishiLiberal Democratic
Tokyo–17th Katsuei HirasawaLiberal Democratic
Tokyo–18th Naoto KanConstitutional Democratic
Tokyo–19th Yohei MatsumotoLiberal Democratic
Tokyo–20th Seiji KiharaLiberal Democratic
Tokyo–21st Akihisa NagashimaLiberal Democratic
Tokyo–22nd Tatsuya ItoLiberal Democratic
Tokyo–23rd Masanobu OguraLiberal Democratic
Tokyo–24th Koichi HagiudaLiberal Democratic
Tokyo–25th Shinji InoueLiberal Democratic

Tokyo block

Tokyo block Takao OchiLiberal Democratic
Tokyo block Miki YamadaLiberal Democratic
Tokyo block Kiyoshi OdawaraLiberal Democratic
Tokyo block Fumiaki MatsumotoLiberal Democratic
Tokyo block Takao AndoLiberal Democratic
Tokyo block Kei TakagiLiberal Democratic
Tokyo block Yoshio TezukaConstitutional Democratic
Tokyo block Yoshinori SuematsuConstitutional Democratic
Tokyo block Akihiro MatsuoConstitutional Democratic
Tokyo block Ikuo YamahanaConstitutional Democratic
Tokyo block Jin MatsubaraConstitutional Democratic
Tokyo block Shunsuke ItoConstitutional Democratic
Tokyo block Yosuke TakagiKōmeitō
Tokyo block Michiyo TakagiKōmeitō
Tokyo block Akira KasaiJCP
Tokyo block Tohru MiyamotoJCP
Tokyo block Mito KakizawaIndependent

Hokuriku Shin'etsu

19 single-member and 11 proportional representation seats.

Niigata Prefecture

Niigata–1st Chinami NishimuraConstitutional Democratic
Niigata–2nd Eiichiro WashioLiberal Democratic
Niigata–3rd Takahiro KuroiwaConstitutional Democratic
Niigata–4th Makiko KikutaConstitutional Democratic
Niigata–5th Hirohiko IzumidaLiberal Democratic
Niigata–6th Shūichi TakatoriLiberal Democratic

Toyama Prefecture

Toyama–1st Hiroaki TabataLiberal Democratic
Toyama–2nd Mitsuhiro MiyakoshiLiberal Democratic
Toyama–3rd Keiichirō TachibanaLiberal Democratic

Ishikawa Prefecture

Ishikawa–1st Hiroshi HaseLiberal Democratic
Ishikawa–2nd Hajime SasakiLiberal Democratic
Ishikawa–3rd Shoji NishidaLiberal Democratic

Fukui Prefecture

Fukui–1st Tomomi InadaLiberal Democratic
Fukui–2nd Tsuyoshi TakagiLiberal Democratic

Nagano Prefecture

Nagano–1st Takashi ShinoharaConstitutional Democratic
Nagano–2nd Mitsu ShimojoConstitutional Democratic
Nagano–3rd Yosei IdeLiberal Democratic
Nagano–4th Shigeyuki GotōLiberal Democratic
Nagano–5th Ichirō MiyashitaLiberal Democratic

Hokuriku Shin'etsu block

Hokuriku Shin'etsu block Taku YamamotoLiberal Democratic
Hokuriku Shin'etsu block Hiroaki SaitoLiberal Democratic
Hokuriku Shin'etsu block Shunsuke MutaiLiberal Democratic
Hokuriku Shin'etsu block Kenichi HosodaLiberal Democratic
Hokuriku Shin'etsu block Koichi MatsudairaConstitutional Democratic
Hokuriku Shin'etsu block Wakako YamamotoConstitutional Democratic
Hokuriku Shin'etsu block Kazuya KondoConstitutional Democratic
Hokuriku Shin'etsu block Takeshi SaikiConstitutional Democratic
Hokuriku Shin'etsu block Masataka OtaKōmeitō
Hokuriku Shin'etsu block Yasufumi FujinoJCP
Hokuriku Shin'etsu block Tohru IshizakiIndependent

Tokai

32 single-member and 21 proportional representation seats.

Gifu Prefecture

Gifu–1st Seiko NodaLiberal Democratic
Gifu–2nd Yasufumi TanahashiLiberal Democratic
Gifu–3rd Yōji MutōLiberal Democratic
Gifu–4th Shunpei KanekoLiberal Democratic
Gifu–5th Keiji FuruyaLiberal Democratic

Shizuoka Prefecture

Shizuoka–1st Yōko KamikawaLiberal Democratic
Shizuoka–2nd Tatsunori IbayashiLiberal Democratic
Shizuoka–3rd Hiroyuki MiyazawaLiberal Democratic
Shizuoka–4th Yoichi FukazawaLiberal Democratic
Shizuoka–5th Gōshi HosonoIndependent
Shizuoka–6th Shū WatanabeConstitutional Democratic
Shizuoka–7th Minoru KiuchiLiberal Democratic
Shizuoka–8th Ryū ShionoyaLiberal Democratic

Aichi Prefecture

Aichi–1st Hiromichi KumadaLiberal Democratic
Aichi–2nd Motohisa FurukawaDPFP
Aichi–3rd Shoichi KondoConstitutional Democratic
Aichi–4th Shōzō KudōLiberal Democratic
Aichi–5th Hirotaka AkamatsuConstitutional Democratic
Aichi–6th Hideki NiwaLiberal Democrati
Aichi–7th Shiori YamaoDPFP
Aichi–8th Tadahiko ItōLiberal Democratic
Aichi–9th Yasumasa NagasakaLiberal Democratic
Aichi–10th Tetsuma EsakiLiberal Democratic
Aichi–11th Shinichiro FurumotoIndependent
Aichi–12th Kazuhiko ShigetokuConstitutional Democratic
Aichi–13th Kensuke OnishiConstitutional Democratic
Aichi–14th Sōichirō ImaedaLiberal Democratic
Aichi–15th Yukinori NemotoLiberal Democratic

Mie Prefecture

Mie–1st Norihisa TamuraLiberal Democratic
Mie–2nd Masaharu NakagawaConstitutional Democratic
Mie–3rd Katsuya OkadaConstitutional Democratic
Mie–4th Norio MitsuyaLiberal Democratic

Tokai block

Tokai block Takaaki KatsumataLiberal Democratic
Tokai block Junji SuzukiLiberal Democratic
Tokai block Shuhei AoyamaLiberal Democratic
Tokai block Jiro KawasakiLiberal Democratic
Tokai block Kenji KandaLiberal Democratic
Tokai block Yoshitaka IkedaLiberal Democratic
Tokai block Tetsuya YagiLiberal Democratic
Tokai block Takeru YoshikawaLiberal Democratic
Tokai block Mitsunori OkamotoConstitutional Democratic
Tokai block Masato ImaiConstitutional Democratic
Tokai block Yoshio MakiConstitutional Democratic
Tokai block Kenichiro SekiConstitutional Democratic
Tokai block Kentaro GenmaConstitutional Democratic
Tokai block Tsunehiko YoshidaConstitutional Democratic
Tokai block Yuta HiyoshiConstitutional Democratic
Tokai block Isao MatsudaConstitutional Democratic
Tokai block Yoshinori OguchiKōmeitō
Tokai block Wataru ItoKōmeitō
Tokai block Nobuko MotomuraJCP
Tokai block Kazumi SugimotoIshin
Tokai block Masayuki AoyamaIndependent

Kinki

47 single-member and 28 proportional representation seats.

Shiga Prefecture

Shiga–1st Toshitaka ŌokaLiberal Democratic
Shiga–2nd Ken'ichirō UenoLiberal Democratic
Shiga–3rd Nobuhide TakemuraLiberal Democratic
Shiga–4th Hiroo KoteraLiberal Democratic

Kyoto Prefecture

Kyōto–1st Bunmei IbukiLiberal Democratic
Kyōto–2nd Seiji MaeharaDPFP
Kyōto–3rd Kenta IzumiConstitutional Democratic
Kyōto–4th Hideyuki TanakaLiberal Democratic
Kyōto–5th Taro HondaLiberal Democratic
Kyōto–6th Hiroshi AndoLiberal Democratic

Osaka Prefecture

Ōsaka–1st Hiroyuki OnishiLiberal Democratic
Ōsaka–2nd Akira SatōLiberal Democratic
Ōsaka–3rd Shigeki SatōKōmeitō
Ōsaka–4th Yasuhide NakayamaLiberal Democratic
Ōsaka–5th Tōru KunishigeKōmeitō
Ōsaka–6th Shin'ichi IsaKōmeitō
Ōsaka–7th Naomi TokashikiLiberal Democratic
Ōsaka–8th Takashi OtsukaIndependent
Ōsaka–9th Kenji HaradaLiberal Democratic
Ōsaka–10th Kiyomi TsujimotoConstitutional Democratic
Ōsaka–11th Hirofumi HiranoConstitutional Democratic
Ōsaka–12th Fumitake FujitaIshin
Ōsaka–13th Kōichi MunekiyoLiberal Democratic
Ōsaka–14th Takashi NagaoLiberal Democratic
Ōsaka–15th Naokazu TakemotoLiberal Democratic
Ōsaka–16th Kazuo KitagawaKōmeitō
Ōsaka–17th Nobuyuki BabaIshin
Ōsaka–18th Takashi EndōIshin
Ōsaka–19th Hodaka MaruyamaN-koku

Hyogo Prefecture

Hyōgo–1st Masatoshi MoriyamaLiberal Democratic
Hyōgo–2nd Kazuyoshi AkabaKōmeitō
Hyōgo–3rd Yoshihiro SekiLiberal Democratic
Hyōgo–4th Hisayuki FujiiLiberal Democratic
Hyōgo–5th Kōichi TaniLiberal Democratic
Hyōgo–6th Masaki ŌgushiLiberal Democratic
Hyōgo–7th Kenji YamadaLiberal Democratic
Hyōgo–8th Hiromasa NakanoKōmeitō
Hyōgo–9th Yasutoshi NishimuraLiberal Democratic
Hyōgo–10th Kisaburō TokaiLiberal Democratic
Hyōgo–11th Takeaki MatsumotoLiberal Democratic
Hyōgo–12th Tsuyoshi YamaguchiLiberal Democratic

Nara Prefecture

Nara–1st Shigeki KobayashiLiberal Democratic
Nara–2nd Sanae TakaichiLiberal Democratic
Nara–3rd Taido TanoseIndependent

Wakayama Prefecture

Wakayama–1st Shūhei KishimotoDPFP
Wakayama–2nd Masatoshi IshidaLiberal Democratic
Wakayama–3rd Toshihiro NikaiLiberal Democratic

Kinki block

Kinki block Shinsuke OkunoLiberal Democratic
Kinki block Noboru KamitaniLiberal Democratic
Kinki block Yukari SatoLiberal Democratic
Kinki block Yayoi KimuraLiberal Democratic
Kinki block Shohei OkashitaLiberal Democratic
Kinki block Tom TanigawaLiberal Democratic
Kinki block Hirofumi KadoLiberal Democratic
Kinki block Kazuhide OkumaLiberal Democratic
Kinki block Mamoru ShigemotoLiberal Democratic
Kinki block Hiroyuki MoriyamaConstitutional Democratic
Kinki block Shu SakuraiConstitutional Democratic
Kinki block Fumiyoshi MurakamiConstitutional Democratic
Kinki block Kanako OtsujiConstitutional Democratic
Kinki block Hideki NagaoConstitutional Democratic
Kinki block Sumio MabuchiConstitutional Democratic
Kinki block Kazunori YamanoiConstitutional Democratic
Kinki block Yuzuru TakeuchiKōmeitō
Kinki block Tomoko UkishimaKōmeitō
Kinki block Susumu HamamuraKōmeitō
Kinki block Yoko WanibuchiKōmeitō
Kinki block Keiji KokutaJCP
Kinki block Tadashi ShimizuJCP
Kinki block Natsue MoriIshin
Kinki block Hidetaka InoueIshin
Kinki block Teruo MinobeIshin
Kinki block Yasushi AdachiIshin
Kinki block Yasuto UranoIshin
Kinki block Kazunori InoueIndependent

Chugoku

20 single-member and 11 proportional representation seats.

Tottori Prefecture

Tottori–1st Shigeru IshibaLiberal Democratic
Tottori–2nd Ryosei AkazawaLiberal Democratic

Shimane Prefecture

Shimane-1st Hiroyuki HosodaLiberal Democratic
Shimane-2nd Wataru TakeshitaLiberal Democratic

Okayama Prefecture

Okayama-1st Ichiro AisawaLiberal Democratic
Okayama-2nd Takashi YamashitaLiberal Democratic
Okayama-3rd Toshiko AbeLiberal Democratic
Okayama-4th Gaku HashimotoLiberal Democratic
Okayama-5th Katsunobu KatoLiberal Democratic

Hiroshima Prefecture

Hiroshima-1st Fumio KishidaLiberal Democratic
Hiroshima-2nd Hiroshi HiraguchiLiberal Democratic
Hiroshima-3rd (Vacant)
Hiroshima-4th Masayoshi ShintaniLiberal Democratic
Hiroshima-5th Minoru TeradaLiberal Democratic
Hiroshima-6th Koji SatoConstitutional Democratic
Hiroshima-7th Fumiaki KobayashiLiberal Democratic

Yamaguchi Prefecture

Yamaguchi-1st Masahiro KomuraLiberal Democratic
Yamaguchi-2nd Nobuo KishiLiberal Democratic
Yamaguchi-3rd Takeo KawamuraLiberal Democratic
Yamaguchi-4th Vacant

Chugoku block

Chugoku block Toshifumi KojimaLiberal Democratic
Chugoku block Mio SugitaLiberal Democratic
Chugoku block Michitaka IkedaLiberal Democratic
Chugoku block Keiichi FurutaLiberal Democratic
Chugoku block Shogo AzemotoLiberal Democratic
Chugoku block Akiko KameiConstitutional Democratic
Chugoku block Keisuke TsumuraConstitutional Democratic
Chugoku block Michiyoshi YunokiConstitutional Democratic
Chugoku block Tetsuo SaitoKōmeitō
Chugoku block Keigo MasuyaKōmeitō
Chugoku block Takashi TakaiIndependent

Shikoku

11 single-member and 6 proportional representation seats.

Tokushima Prefecture

Tokushima-1st Masazumi GotodaLiberal Democratic
Tokushima-2nd Sunichi YamaguchiLiberal Democratic

Kagawa Prefecture

Kagawa-1st Takuya HiraiLiberal Democratic
Kagawa-2nd Yuichiro TamakiDPFP
Kagawa-3rd Keitaro OnoLiberal Democratic

Ehime Prefecture

Ehime-1st Yasuhisa ShiozakiLiberal Democratic
Ehime-2nd Seiichiro MurakamiLiberal Democratic
Ehime-3rd Yoichi ShiraishiConstitutional Democratic
Ehime-4th Koichi YamamotoLiberal Democratic

Kochi Prefecture

Kochi-1st Gen NakataniLiberal Democratic
Kochi-2nd Hajime HirotaConstitutional Democratic

Shikoku block

Shikoku block Teru FukuiLiberal Democratic
Shikoku block Mamoru FukuyamaLiberal Democratic
Shikoku block Yuji YamamotoLiberal Democratic
Shikoku block Junya OgawaConstitutional Democratic
Shikoku block Norio TakeuchiConstitutional Democratic
Shikoku block Noritoshi IshidaKōmeitō

Kyushu

35 single-member and 20 proportional representation seats.

Fukuoka Prefecture

Fukuoka–1st Takahiro InoueLiberal Democratic
Fukuoka–2nd Makoto OnikiLiberal Democratic
Fukuoka–3rd Atsushi KogaLiberal Democratic
Fukuoka–4th Hideki MiyauchiLiberal Democratic
Fukuoka–5th Yoshiaki HaradaLiberal Democratic
Fukuoka–6th Jiro HatoyamaLiberal Democratic
Fukuoka–7th Satoshi FujimaruLiberal Democratic
Fukuoka–8th Tarō AsōLiberal Democratic
Fukuoka–9th Asahiko MiharaLiberal Democratic
Fukuoka–10th Kōzō YamamotoLiberal Democratic
Fukuoka–11th Ryōta TakedaLiberal Democratic

Saga Prefecture

Saga–1st Kazuhiro HaraguchiConstitutional Democratic
Saga–2nd Hiroshi OgushiConstitutional Democratic

Nagasaki Prefecture

Nagasaki–1st Hideko NishiokaDPFP
Nagasaki–2nd Kanji KatōLiberal Democratic
Nagasaki–3rd Yaichi TanigawaLiberal Democratic
Nagasaki–4th Seigo KitamuraLiberal Democratic

Kumamoto Prefecture

Kumamoto–1st Minoru KiharaLiberal Democratic
Kumamoto–2nd Takeshi NodaLiberal Democratic
Kumamoto–3rd Tetsushi SakamotoLiberal Democratic
Kumamoto–4th Yasushi KanekoLiberal Democratic

Oita Prefecture

Ōita–1st Yōichi AnamiLiberal Democratic
Ōita–2nd Seishirō EtōLiberal Democratic
Ōita–3rd Takeshi IwayaLiberal Democratic

Miyazaki Prefecture

Miyazaki–1st Shunsuke TakeiLiberal Democratic
Miyazaki–2nd Taku EtōLiberal Democratic
Miyazaki–3rd Yoshihisa FurukawaLiberal Democratic

Kagoshima Prefecture

Kagoshima–1st Hiroshi KawauchiConstitutional Democratic
Kagoshima–2nd Masuo KanekoLiberal Democratic
Kagoshima–3rd Yasuhiro OzataLiberal Democratic
Kagoshima–4th Hiroshi MoriyamaLiberal Democratic

Okinawa Prefecture

Okinawa–1st Seiken AkamineJCP
Okinawa–2nd Kantoku TeruyaSocial Democratic
Okinawa–3rd Tomohiro YaraConstitutional Democratic
Okinawa–4th Kōsaburō NishimeLiberal Democratic

Kyushu Block

Kyūshū block Masahisa MiyazakiLiberal Democratic
Kyūshū block Takuma MiyajiLiberal Democratic
Kyūshū block Masahiro ImamuraLiberal Democratic
Kyūshū block Yasushi FurukawaLiberal Democratic
Kyūshū block Konosuke KokubaLiberal Democratic
Kyūshū block Tsutomu TomiokaLiberal Democratic
Kyūshū block Kazuchika IwataLiberal Democratic
Kyūshū block Katsuhiko YokomitsuConstitutional Democratic
Kyūshū block Koichi YamauchiConstitutional Democratic
Kyūshū block Masayoshi YagamiConstitutional Democratic
Kyūshū block Shuji InatomiConstitutional Democratic
Kyūshū block Takashi KiiConstitutional Democratic
Kyūshū block Hajime YoshikawaConstitutional Democratic
Kyūshū block Yasuyuki EdaKōmeitō
Kyūshū block Nobuhiro YoshidaKōmeitō
Kyūshū block Masakazu HamachiKōmeitō
Kyūshū block Takaaki TamuraJCP
Kyūshū block Nariaki NakayamaKibō
Kyūshū block Shuji KiraIndependent
Kyūshū block Mikio ShimojiIndependent

House of Councillors

Composition

Composition of the House of Councillors of the National Diet of Japan (as of 6 November 2023, 212th National Diet)[4]
Caucus (English name)[5]
(domestic name)
Parties Members
Term Total
29 July 2019 –
28 July 2025
(elected 2019,
up 2025)
26 July 2022 –
25 July 2028
(elected 2022,
up 2028)
PR SNTV/FPTP Subtotal PR SNTV/FPTP Subtotal
Government 264268 245276 144
Liberal Democratic Party
Jiyūminshutō
Liberal Democratic Party (LDP) 193554 184563 117
Komeito
Kōmeitō
Komeito 7714 6713 27
Opposition 232649 252045 94
The Constitutional Democratic Party of Japan and Social Democratic Party
Rikken-minshu / Shamin
Constitutional Democratic Party (CDP)
Social Democratic Party (SDP)
Independents
81422 81018 40
Nippon Ishin (Japan Innovation Party)
Nippon Ishin no Kai
Nippon Ishin no Kai 448 8412 20
Democratic Party For the People and The Shin-Ryokufukai
Kokumin-minshutō / Shin-Ryokufūkai
Democratic Party for the People (DPFP)
Independents
347 336 13
Japanese Communist Party
Nihon Kyōsantō
Japanese Communist Party (JCP) 437 314 11
Reiwa Shinsengumi
Reiwa Shinsengumi
Reiwa Shinsengumi 202 213 5
The Party to Protect People from NHK
NHK kara kokumin o mamoru tō
Seijika Joshi 48 Party 101 101 2
Okinawa Whirlwind
Okinawa no Kaze
Okinawa Social Mass Party 011 011 2
Independents (government & opposition) 145 123 8
Independents
Members not affiliated with any parliamentary caucus
LDP 1 (President)
CDP 1 (Vice President)
Sanseitō 1
Independents 7
257 123 10
Total 5073123 5074124 247
Vacant: one Kanagawa seat in the 2019 class (no separate by-election unless more than 25% of the district in that class are vacant)[6]N/A 011 000 1

List of members by parliamentary group and constituency. There are usually translations and abbreviations for parliamentary groups (会派 kaiha, current House of Councillors website translation: "In-House Group") used on the English pages of the House of Representatives website [7] The official caucus names[8] are transcribed to Latin here:

Notes:

  • Not all members of a caucus are also members of the affiliated party, and sometimes even some members of a party are not member of the affiliated caucus.
  • The N→S column allows to sort by prefecture from North to South in the order generally used in Japan (also used as number identifier for prefectures [JP-##] in ISO 3166-2).
  • Due to a 2015 reapportionment, some districts are represented by an uneven number of members until the regular 2019 election, when it becomes effective in both halves.

Members

Members of the House of Councillors (as of August 3, 2023)[9]
NameCaucusElectoral districtN→S (ISO)End of term
Masashi AdachiLProportional2028
Toshiyuki AdachiLProportional2028
Ai AokiCDProportional2028
Kazuhiko AokiLTottori-Shimane2028
Kenta Aoshima R-H Proportional 2028
Shigeharu AoyamaLProportional2028
Masaaki AkaikeLProportional2025
Ken Akamasu L Proportional 2028
Kōzō AkinoKFukuoka2028
Hitoshi AsadaR-HOsaka2028
Kentarō AsahiLTokyo2028
Keiichiro Asao L Kanagawa 2028
Tōru AzumaR-HOsaka2025
Haruko ArimuraLProportional2025
Akiko Ikuina L Tokyo 2028
Satoshi InoueCProportional2025
Yoshiyuki Inoue L Proportional 2028
Gaku ItoCSaitama2025
Takae ItōKHyōgo2028
Takae ItōPDAichi2028
Yōichi IhaOWOkinawa2028
Akira IshiiR-HProportional2028
Jun'ichi IshiiLChiba2025
Hiroo IshiiLAkita2028
Masahiro IshiiLOkayama2025
Mitsuko IshiiR-HProportional2028
Noriko IshigakiCDMiyagi2025
Taiga IshikawaCDProportional2025
Hirotaka IshikawaKOsaka2028
Masahiro IshidaLProportional2025
Michihiro IshibashiCDProportional2028
Yoshihiko IsozakiLKagawa2028
Tetsuji IsozakiPDProportional2025
Naoki InoseR-HProportional2028
Kuniko InoguchiLChiba2028
Eriko ImaiLProportional2028
Tomo IwabuchiCProportional2028
Tsuyohito IwamotoLHokkaidō2025
Isamu UedaKProportional2028
Kiyoshi UedaPDSaitama2028
Michiko UenoLTochigi2028
Sakura UchikoshiCDNiigata2025
Satoshi UmemuraR-HProportional2025
Mizuho UmemuraR-HOsaka2025
Shoichi UsuiLChiba2028
Kiyoshi EjimaLYamaguchi2028
Seiichi EtōLProportional2025
Toshiyuki Ochi L Proportional 2028
Kusuo OshimaRProportional2028
Makoto OnikiCDProportional2028
Masahito OzawaCDProportional2025
Takumi OnumaCDIbaraki2025
Kimi OnodaLOkayama2028
Hidehisa OtsujiIKagoshima2025
Satoshi ŌieLFukuoka2028
Kōhei ŌtsukaPDAichi2025
Yasutada ŌnoLGifu2025
Fusae ŌtaLOsaka2025
Naoki OkadaLIshikawa2028
Yuko OhtsubakiCDProportional2025
Shun OtokitaR-HTokyo2025
Hiroyuki KadaLHyōgo2025
Yukiko KadaPDShiga2025
Satsuki KatayamaLProportional2028
Daisuke KatayamaR-HHyōgo2028
Daisuke KajiharaLProportional2028
Kenji KatsubeCDHokkaidō2025
Michihito Kaneko R-H Proportional 2028
Sohei KamiyaIProportional2028
Masayuki Kamiya L Proportional 2028
Tomoko KamiCProportional2025
Akiyoshi Kato L Ibaraki 2028
Takanori KawaiPDProportional2028
Ryūhei KawadaCDProportional2025
Yoshihiro KawanoKProportional2025
Eiko KimuraRProportional2025
Yoshiko KiraCTokyo2025
Makiko KishiCDProportional2025
Tsuneo KitamuraLYamaguchi2025
Hiroto KumagaiCDSaitama2025
Tetsuya KubotaKProportional2028
Akiko KurabayashiCKyoto2025
Seiichi KushidaR-HProportional2028
Takashi KoyariLShiga2028
Akira KoikeCProportional2025
Hiroyuki KonishiCDChiba2028
Chikage KogaCDProportional2028
Yūichirō KogaLNagasaki2025
Yukihito KogaCDFukuoka2028
Harutomo Kosho L Ōita 2028
Kazuhiro Kobayashi L Niigata 2028
Ryōsuke KōzukiLIbaraki2025
Sayaka SasakiKKanagawa2025
Kei SatōLNara2028
Nobuaki SatōLProportional2025
Masahisa SatōLProportional2025
Yoshitaka SaitōCDAichi2028
Kenichiro Saito Y Proportional 2025
Yasuyuki SakaiLAichi2025
Mitsuru SakuraiLMiyagi2028
Ryūji SatomiKAichi2028
Akiko SantōLProportional2025
Takayuki ShimizuR-HHyōgo2025
Aki Shirasaka L Ōita 2025
Shin'ichi Shiba CD Proportional 2028
Masato ShimizuLGunma2025
Hanako JimiLProportional2028
Hiroaki ShiotaKProportional2028
Ayaka ShiomuraCDTokyo2025
Sohei NihiCProportional2028
Takumi ShibataR-HProportional2025
Dai ShimamuraLKanagawa2025
Rokuta ShimonoKFukuoka2025
Kanehiko ShindōLProportional2028
Kazuya ShinbaPDShizuoka2025
Genki SudoIProportional2025
Shinsuke SuematsuLHyōgo2028
Hisatake SugiKOsaka2025
Hideya SugioCDNagano2028
Muneo SuzukiR-HProportional2025
Hiroshige SekōLWakayama2025
Masakazu SekiguchiLSaitama2028
Maiko TajimaCDAichi2025
Masayo TanabuCDAomori2028
Tomoko TamuraCProportional2028
Mami TamuraPDProportional2025
Mari TakagiCDSaitama2028
Kaori TakagiR-HOsaka2028
Katsunori TakahashiLTochigi2025
Harumi TakahashiLHokkaidō2025
Mitsuo TakahashiKHyōgo2025
Tetsumi TakaraOWOkinawa2025
Motome TakisawaLAomori2025
Hirofumi TakinamiLFukui2025
Shinji TakeuchiKProportional2028
Hitoshi Takezume PD Proportional 2028
Toshiko TakeyaKTokyo2028
Keizō TakemiLTokyo2025
Masaaki TaniaiKProportional2028
Masashi Tanaka L Proportional 2025
Daisuke Tembata R Proportional 2028
Shizuka TerataIAkita2025
Yoshifumi TsugeLProportional2025
Yōsuke TsuruhoLWakayama2028
Shigeru DōkoLToyama2025
Kiyomi TsujimotoCDProportional2028
Eri TokunagaPDHokkaidō2028
Rio Tomonoh L Proportional 2028
Toshirō ToyodaLChiba2025
Takako NagaeIEhime2025
Makiko DogomiIIbaraki 2028
Hiroshi NakadaLProportional2028
Hirofumi NakasoneLGunma2028
Manabu NagaiLYamanashi2028
Kiyoshi NakajoR-HProportional2028
Yūsuke NakanishiLTokushima-Kōchi2028
vacant Tokushima-Kōchi 2025
Hiroyuki NagahamaIChiba2025
Makoto NagamineLMiyazaki2025
Hideki NiizumaKProportional2025
Shōji NishidaLKyoto2025
Makoto NishidaKSaitama2028
Kōtarō NogamiLToyama2028
Kuniyoshi NodaCDFukuoka2025
Tetsurō NomuraLKagoshima2028
Jiro HataCDNagano2025
Takashi HanyūdaLProportional2025
Michiya HagaPDYamagata2025
Seishi BabaLKumamoto2025
Seiko HashimotoLProportional2025
Makoto HamaguchiPDProportional2028
Satoshi HamadaYProportional2025
Gaku HasegawaLHokkaidō2028
Hideharu Hasegawa L Proportional 2028
Yoshifumi HamanoPDProportional2025
Natsumi HigaLProportional2025
Daisaku HirakiKProportional2025
Sachiko HirayamaIShizuoka2028
Megumi Hirose L Iwate 2028
Takamaro FukuokaLSaga2028
Mizuho FukushimaCDProportional2028
Tetsurō FukuyamaCDKyoto2028
Masahito FujikawaLAichi2028
Shin'ya FujikiLProportional2028
Toshimitsu FunahashiLHokkaidō2028
Yasue FunayamaPDYamagata2028
Yasuhiko FunagoRProportional2025
Toshiharu FurukawaLSaitama2025
Kazuhiro Fujii L Proportional 2028
Iwao HoriiLNara2025
Akiko HondaLProportional2025
Hokuto HoshiLFukushima2028
Shōji MaitachiLTottori-Shimane2025
Takao MakinoLShizuoka2025
Hiroe MakiyamaCDKanagawa2025
Akemi MatsunoR-HProportional2028
Rui MatsukawaLOsaka2028
Shigefumi MatsuzawaR-HKanagawa2025
Shinpei MatsushitaLMiyazaki2028
Yoshifumi MatsumuraLKumamoto2028
Masaji MatsuyamaLFukuoka2025
Tamayo MarukawaLTokyo2025
Eri Mikami CD Hiroshima 2028
Nobuhiro MiuraKKanagawa2028
Yasushi MiuraLProportional2025
Junko MiharaLKanagawa2028
Shingo MiyakeLKagawa2025
Motoko Mizuno CD Kanagawa 2028
Shunichi MizuokaCDProportional2025
Haruko MiyaguchiCDHiroshima2025
Masao MiyazakiLProportional2025
Masaru MiyazakiKProportional2028
Yōichi MiyazawaLHiroshima2028
Shūji MiyamotoLIshikawa2025
Kunihiko MuroiR-HProportional2025
Masako MoriLFukushima2025
Shinji MorimotoCDHiroshima2025
Takashi MoriyaCDProportional2025
Hiroshi MoriyaLYamanashi2025
Kyoko Murata CD Proportional 2028
Katsuo YakuraKSaitama2025
Nobuo YasueKAichi2025
Hirofumi YanagaseR-HProportional2025
Natsuo YamaguchiKTokyo2025
Masaaki YamazakiLFukui2028
Yūhei YamashitaLSaga2025
Yoshiki YamashitaCProportional2025
Taku YamazoeCTokyo2028
Taro YamadaLProportional2025
Toshio YamadaLProportional2025
Hiroshi YamadaLProportional2028
Eriko YamataniLProportional2028
Kanae YamamotoKProportional2025
Junzō YamamotoLEhime2028
Hiroshi YamamotoKProportional2025
Taro Yamamoto R Tokyo 2028
Sachiko Yamamoto L Mie 2028
Keisuke Yamamoto L Nagasaki 2028
Takanori YokosawaCDIwate2025
Shin'ichi YokoyamaKProportional2028
Saori YoshikawaCDProportional2025
Yūmi YoshikawaLMie2025
Akira YoshiiLKyoto2028
Renhō [Murata]CDTokyo2028
Masamune WadaLProportional2025
Kaneshige WakamatsuKProportional2025
Takeyuki WatanabeLGifu2028
Yohei WakabayashiLShizuoka2028

References

  1. "会派名及び会派別所属議員数". 衆議院 The House of Representatives, Japan. Retrieved 2023-11-07. (Japanese), Strength of the In-House Groups in the House of Representatives (English), retrieved May 19, 2023.
  2. House of Representatives: Strength of Political Groups in the House of Representatives
  3. House of Representatives: List of members, List of parliamentary groups, List of members by parliamentary group (in Japanese)
  4. "会派名及び会派別所属議員数". 参議院 House of Councillors, The National Diet of Japan. 2023. Retrieved 2023-11-07.
  5. "Strength of the Political Groups in the House of Councillors". House of Councillors. Retrieved 2022-12-23.
  6. Kanagawa Shimbun, August 30, 2023: 自民・島村大参院議員が死去、神奈川選挙区で2期目, retrieved September 17, 2023.
  7. House of Councillors: Strength of the Political Groups in the House of Councillors
  8. List of caucuses (in Japanese)
  9. House of Councillors: List of caucuses and membership totals, List of members, List of members by district and in the proportional district: by caucus (Japanese); English list of members (by caucus, does not list electoral district or end of term)

See also

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