List of members of the Shūgiin (48th legislative term)
This list gives an overview of all members of the Shūgiin (House of Representatives), the lower house of Japan's Kokkai (National Assembly), in the 48th electoral term (2017–), which began with the 195th Kokkai.
Factions
Note: Short transition periods as non-attached persons are not included in the entries and exits.
| fraction | Abbreviation used here |
2017 election results (parties) |
Beginning of the legislative period (195th Kokkai) |
As of June 17, 2020 (end 201. Kokkai) |
Accesses | Departures | balance | |
|---|---|---|---|---|---|---|---|---|
|
Liberal Democratic Party / Independent Vers. Jiyūminshutō ・ Mushozoku no kai temporarily only Liberal Democratic Party (Jiyūminshutō) |
L. | 281 (LDP) 3 (LDP-nominated) |
284 | 284 |
Miyazaki (replacement) S. Aoyama (replacement) Take. Yoshikawa (successor) Washio (accession) Nagashima (accession) Hosono (accession) Azemoto (successor) Debata (successor) Ide (accession) Fukazawa (by-election) |
Ōshima (President) Sonoda (death) T. Kitagawa (death) Ōmi (resignation) T. Tabata (resignation) Miura (auto. Resignation) Miyagawa (death) Mochizuki (death) T. Akimoto (resignation) Kawai (resignation) |
0 | |
|
Rikken Minshu ・ Kokumin ・ Shaho ・ Mushozoku Forum “ KDP / DVP / Soz. Sure / Independent forum “ parliamentary group in October 2019 |
D. | - | - | 119 |
Shina (joining when founding) Mabuchi (joining when founding) Ryū (joining) |
Ide (resignation upon establishment) Hatsushika (resignation) Takai (exclusion) |
+119 | |
|
Constitutional Democratic Party / Independent Forum Rikken Minshutō ・ Mushozoku Forum until January 2019 KDP / Citizens' Club (Rikken Minshutō ・ Shimin Club) |
KDP | 54 (KDP) 1 (KDP-nominated) |
55 | - |
A. Fukuda (accession) Kikuta (accession) Terata (accession) Imai (accession) Ogawa (accession) Shun. Itō (accession) K. Eda (accession) Nakagawa (accession) Azumi (accession) E. Kaneko (accession) Kuroiwa (accession) K. Nakamura (accession) H. Ōgushi (accession) Tajima (accession) Okada (accession) Yamanoi ( Accession) Yunoki (accession) |
Akamatsu (Vice President) Hiyoshi (Resignation) |
-55 | |
|
Democratic People's Party / Independent Club Kokumin Minshutō ・ Mushozoku Club until May 2018 Party of Hope / Independent Club ( Kibō no Tō・ Mushozoku Club ) |
DVP | 50 (Kibō no Tō) | 51 | - |
Haraguchi (accession) Hirano (accession) Shinohara (accession) Ozawa (faction community) Hiyoshi (faction community) K. Satō (accession) Yatagawa (successor) Yara (by-election) |
Matsubara (leaving) K. Motomura (leaving) Nagashima (leaving) Na. Nakayama (staying with Kibō) K. Inoue (staying with Kibō) Hosono (leaving) Ogawa (leaving) H. Ōgushi (leaving) Tajima (leaving) Tarutoko (leaving) Terata (leaving) Ryū (leaving) K. Satō (leaving) Ide (exit) Shun. Itō (leaving) Kakizawa (leaving) Yunoki (leaving / closing) Imai (leaving) Shina (leaving) Yamanoi (leaving / closing) |
−51 | |
|
Shakaihoshō o tatenaosu kokumin kaigi “People's Congress for the Renewal of Social Security” until January 2019 “Assembly of Independents”, Mushozoku no Kai |
Shakaihoshō | ≥14 ( DFP members without party nomination) | 13 | - |
Genba (accession) K. Nakamura (accession) K. Motomura (accession) H. Ōgushi (accession) Tajima (accession) Shigetoku (accession) Ide (accession) Nakajima (accession) Matsubara (accession) Kakizawa (accession) |
Haraguchi (leaving) Hirano (leaving) Shinohara (leaving) Kikuta (leaving) A. Fukuda (leaving) K. Eda (leaving) Nakagawa (leaving) Azumi (leaving) E. Kaneko (leaving) Kuroiwa (leaving) K. Nakamura ( Resignation) H. Ōgushi (resignation) Tajima (resignation) Okada (resignation) K. Motomura (resignation) |
−13 | |
|
Social Democratic Party / Civic Association Shakaiminshutō ・ shimin rengō |
SDP | 2 (SDP) | 2 | - | - | - | −2 | |
|
Liberal party Jiyūtō temporarily dissolved in September / October 2018, then until January 2019, then faction community with DVP |
LP | 2 (LP members without party nomination) | 2 | - | Hiyoshi (accession) |
D. Tamaki (resignation) Ozawa (parliamentary group) Hiyoshi (parliamentary group) |
−2 | |
|
Kōmeitō "Justice Party" |
Kōmeitō | 29 (Kōmeitō) | 29 | 29 | - | - | 0 | |
|
Communist Party of Japan Nihon Kyōsantō |
KPJ | 12 (CPY) | 12 | 12 | Shimizu (successor) | Ta.Miyamoto (resignation) | 0 | |
|
Nippon Ishin no Kai・ Mushozoku no kai “Association for the Reformation / Restoration Japan / Independent. Vers. ” Until February 2020 only Nippon Ishin no Kai |
Ishin | 11 (Ishin) | 11 | 11 |
Fujita (by-election) M. Aoyama (accession) Minobe (successor) |
Maruyama (exclusion) Shimoji (resignation / exclusion) Tanihata (resignation) |
0 | |
|
Kibō no Tō "Party of Hope" since May 2018, technically as a new foundation / split of the rump party from the Kibō no Tō → DVP |
Kibo | - | - | 2 |
N / A. Nakayama (founding member) K. Inoue (founding member) |
- | +2 | |
|
Mirai Nippon "Future Japan" October 2018 – July 2019 |
Mirai | - | - | - |
Nagashima (founding member) Ryū (founding member) |
Nagashima (when dissolved) Ryū (when dissolved) |
0 | |
| Non-attached | non-attached | ≤6 (non-party without party nomination) | 6th | 8th |
Ōshima (President) Akamatsu (Vice President) Matsubara Nagashima Hosono Ogawa Yunoki Ryū K. Satō Kakizawa Tarutoko Ide Mabuchi (Successor) Maruyama Shina Ryū Ide T. Akimoto Shimoji Hatsushika Takai Kawai |
Genba K. Nakamura Ogawa Shigetoku Nagashima Ryū Ide Nakajima Tarutoko (resignation) K. Satō Washio Matsubara Kakizawa Hosono Yunoki Shina Mabuchi Ide Ryū M. Aoyama |
+2 | |
| total | 465 | 465 | 465 | 0 | ||||
Bureau
- President: Tadamori Ōshima (non-attached, LDP)
- Vice President: Hirotaka Akamatsu (non-attached, KDP)
Prime Minister Elections and Cabinets
- November 1, 2017
Shinzō Abe (LDP) is elected Prime Minister of Japan with 312 votes in the 1st ballot ; other MPs with votes were: Yukio Edano (KDP) 60, Shū Watanabe (Kibō) 51, Kōhei Ōtsuka (Sangiin, DFP) 16, Kazuo Shii (KPJ) 12, Toranosuke Katayama (Sangiin, Ishin) 11, Seiji Maehara (Kibō, Party: DFP) 1, Eiichirō Washio (non-attached, party: DFP) 1. The Sangiin also elects Shinzō Abe in the 1st ballot. Formed government (LDP-Kōmeitō coalition): Cabinet Shinzō Abe IV & 1st and 2nd reshuffle .
List of MPs
Abbreviations / legend:
- Vw. Stands for proportional representation block ( 比例 ブ ロ ッ ク hirei burokku )
- The constituency column is sorted according to majority / proportional representation constituencies and from north to south in the order customary in Japan ( ISO 3166-2: JP ).
- In the column “parl. Sen. "(for" parliamentary seniority ") is the number of individual electoral successes ( 当選 回 数 tōsen kaisū ), which does not always coincide with the electoral periods of the chamber, as it is due to the trench election system in the event of a successful change from a proportional representation a majority seat is possible, to be elected twice as a member of parliament in one electoral term. Among other things, the “parliamentary seniority” determines the seating arrangements within the parliamentary groups.
- shaded: MPs who were not members for the entire period
| Surname | fraction | Constituency | parl. Sen. | Remarks |
|---|---|---|---|---|
| Ichirō Aisawa | L. | Okayama 1 | 11 | |
| Yōichirō Aoyagi | D. | Kanagawa 6 | 3 | Elected for the KDP |
| Shuhei Aoyama | L. | Vw. Tōkai | 3 | Successor for Sei Ōmi in February 2019 |
| Masayuki Aoyama | Ishin | Vw. Tōkai | 1 | Elected for the KDP, party membership suspended before the constituent meeting, non-attached from the start, also resigned from the party in 2018, joined the Ishin parliamentary group in February 2020 |
| Yamato Aoyama | D. | Vw. North Kantō | 1 | Elected for the Kibō no Tō |
| Ryōsei Akazawa | L. | Tottori 2 | 5 | |
| Kazuyoshi Akaba | Kōmeitō | Hyogo 2 | 8th | |
| Jirō Akama | L. | Kanagawa 14 | 4th | |
| Hirotaka Akamatsu | non-attached | Aichi 5 | 10 | KDP, non-attached since the election as vice president |
| Seiken Akamine | KPJ | Okinawa 1 | 7th | |
| Ken'ya Akiba | L. | Miyagi 2 | 6th | |
| Tsukasa Akimoto | non-attached | Tokyo 15 | 3 [+1 in Sangiin] | Elected for the LDP, leaving in December 2019 |
| Masatoshi Akimoto | L. | Chiba 9 | 3 | |
| Yukihiko Akutsu | D. | Vw. Tōhoku | 4th | Elected for the KDP |
| Satoshi Asano | D. | Vw. North Kantō | 1 | Elected for the Kibō no Tō |
| Jun Azumi | D. | Miyagi 5 | 8th | Elected as a DFP member without party nomination, to the Mushozoku no Kai parliamentary group, resigned from the party in May 2018, changed to the KDP parliamentary group in January 2019, joined the KDP in September 2019 |
| Shōgo Azemoto | L. | Vw. Chūgoku | 1 | Successor for Yasushi Miura in July 2019 |
| Tarō Asō | L. | Fukuoka 8 | 13 | |
| Yasushi Adachi | Ishin | Vw. Kinki | 3 | |
| Yōichi Anami | L. | Ōita 1 | 3 | |
| Shinzo Abe | L. | Yamaguchi 4 | 9 | |
| Toshiko Abe | L. | Okayama 3 | 5 | Elected without party nomination, retrospectively nominated |
| Tomoko Abe | D. | Kanagawa 12 | 7th | Elected for the KDP |
| Akira Amari | L. | Kanagawa 13 | 12 | |
| Satoshi Arai | D. | Hokkaidō 3 | 8th | Elected for the KDP |
| Takao Andō | L. | Vw. Tokyo | 1 | |
| Hiroshi Andō | L. | Kyoto 6 | 3 | |
| Maki Ikeda | D. | Vw. Hokkaidō | 1 | Elected for the KDP |
| Michitaka Ikeda | L. | Vw. Chūgoku | 3 | |
| Yoshitaka Ikeda | L. | Vw. Tōkai | 3 | |
| Shin'ichi Isa | Kōmeitō | Osaka 6 | 3 | |
| Keiichi Ishii | Kōmeitō | Vw. North Kantō | 9 | |
| Akimasa Ishikawa | L. | Ibaraki 5 | 3 | |
| Kaori Ishikawa | D. | Hokkaido 11 | 1 | Elected for the KDP |
| Tōru Ishizaki | L. | Vw. Hokuriku-Shin'etsu | 3 | |
| Noritoshi Ishida | Kōmeitō | Vw. Shikoku | 8th | |
| Masatoshi Ishida | L. | Wakayama 2 | 7th | |
| Shigeru Ishiba | L. | Tottori 1 | 11 | |
| Nobuteru Ishihara | L. | Tokyo 8 | 10 | |
| Hirotaka Ishihara | L. | Tokyo 3 | 4th | |
| Kenta Izumi | D. | Kyoto 3 | 7th | Elected for the Kibō no Tō |
| Hirohiko Izumida | L. | Niigata 5 | 1 | |
| Yōsei Ide | L. | Nagano 3 | 3 | Elected for the Kibō no Tō, resigned in May 2018, joining the Shakaihoshō o tatenaosu kokumin kaigi faction in January 2019, with the establishment of the KDP-DVP-Shakaihoshō faction community in October 2019, non-attached, joining the LDP in December 2019 |
| Shunsuke Itō | D. | Vw. Tokyo | 1 | Elected for the Kibō no Tō, leaving the DVP and joining the KDP parliamentary group in January 2019 |
| Shintarō Itō | L. | Miyagi 4 | 6th | |
| Tadahiko Itō | L. | Aichi 8 | 4th | |
| Tatsuya Ito | L. | Tokyo 22 | 8th | |
| Yoshitaka Itō | L. | Hokkaidō 7 | 4th | |
| Wataru Itō | Kōmeitō | Vw. Tōkai | 4th | |
| Tomomi Inada | L. | Fukui 1 | 5 | |
| Hisashi Inatsu | Kōmeitō | Hokkaidō 10 | 4th | |
| Shūji Inatomi | D. | Vw. Kyushu | 2 | Elected for the Kibō no Tō |
| Toshirō Ino | L. | Gunma 2 | 3 | |
| Kazunori Inoue | Kibo | Vw. Kinki | 1 | Remain with the hull or change to the new Kibō no Tō in May 2018 |
| Shinji Inoue | L. | Tokyo 25 | 6th | |
| Takahiro Inoue | L. | Fukuoka 1 | 3 | |
| Hidetaka Inoue | Ishin | Vw. Kinki | 3 | |
| Yoshihisa Inoue | Kōmeitō | Vw. Tōhoku | 9 | |
| Tatsunori Ibayashi | L. | Shizuoka 2 | 3 | |
| Bunmei Ibuki | L. | Kyoto 1 | 12 | |
| Masato Imai | D. | Vw. Tōkai | 4th | Elected for the Kibō no Tō, leaving the DVP and joining the KDP parliamentary group in October 2018 |
| Sōichirō Imaeda | L. | Aichi 14 | 3 | |
| Masahiro Imamura | L. | Vw. Kyushu | 8th | |
| Kazuchika Iwata | L. | Vw. Kyushu | 3 | |
| Takeshi Iwaya | L. | Ōita 3 | 8th | |
| Kentaro Uesugi | L. | Vw. Tōhoku | 4th | |
| Ken'ichirō Ueno | L. | Shiga 2 | 4th | |
| Hiroshi Ueno | L. | Vw. South Kantō | 2 [+1 in Sangiin] | |
| Tomoko Ukishima | Kōmeitō | Vw. Kinki | 3 [+1 in Sangiin] | |
| Yukio Ubukata | D. | Vw. South Kantō | 6th | Elected for the KDP |
| Yasuto Urano | Ishin | Vw. Kinki | 3 | |
| Tetsuma Esaki | L. | Aichi 10 | 7th | |
| Kenji Eda | D. | Kanagawa 8 | 6th | Elected without party nomination (DFP withdrawal from the party submitted before the election), to the Mushozoku no Kai parliamentary group, left parliamentary group in December 2018, joined the KDP parliamentary group in January 2019 |
| Yasuyuki Eda | Kōmeitō | Vw. Kyushu | 7th | |
| Yukio Edano | D. | Saitama 5 | 9 | Elected for the KDP |
| Akinori Eto | L. | Vw. Tōhoku | 7th | |
| Seishirō Etō | L. | Ōita 2 | 12 [+1 in Sangiin] | |
| Taku Etō | L. | Miyazaki 2 | 6th | |
| Takashi Endo | Ishin | Osaka 18 | 3 | |
| Toshiaki Endo | L. | Yamagata 1 | 8th | |
| Toshitaka Ōoka | L. | Shiga 1 | 3 | |
| Masako Ōkawara | D. | Vw. North Kantō | 1 [+1 in Sangiin] | Elected for the KDP |
| Hiroshi Ōgushi | D. | Saga 2 | 5 | Elected for the Kibō no Tō, leaving and joining the Mushozoku no Kai faction in May 2018, switching to the KDP faction in January 2019, joining the KDP in September 2019 |
| Masaki Ōgushi | L. | Hyogo 6 | 3 | |
| Yoshinori Ōguchi | Kōmeitō | Vw. Tōkai | 8th | |
| Kazuhide Ōkuma | L. | Vw. Kinki | 2 | |
| Seiji Osaka | D. | Hokkaidō 8 | 4th | Elected without party nomination, retroactive KDP nomination |
| Atsushi Ōshima | D. | Saitama 6 | 7th | Elected for the Kibō no Tō |
| Tadamori Ōshima | non-attached | Aomori 2 | 12 | LDP, non-attached since the election for president |
| Akihiro Ōta | Kōmeitō | Tokyo 12 | 8th | |
| Masataka Ōta | Kōmeitō | Vw. Hokuriku-Shin'etsu | 1 | |
| Takashi Ōtsuka | L. | Osaka 8 | 4th | |
| Taku Ōtsuka | L. | Saitama 9 | 4th | |
| Kensuke Ōnishi | D. | Aichi 13 | 4th | Elected for the Kibō no Tō |
| Hideo Ōnishi | L. | Tokyo 16 | 3 | |
| Hiroyuki Ōnishi | L. | Osaka 1 | 2 | |
| Keitarō Ōno | L. | Kagawa 3 | 3 | |
| Be mi | L. | Vw. Tōkai | 6th | Resignation in January 2019 for mayoral candidacy in Anjō |
| Shōhei Okashita | L. | Vw. Kinki | 2 | |
| Kazumasa Okajima | D. | Vw. South Kantō | 3 | Elected for the KDP |
| Katsuya Okada | D. | Mie 3 | 10 | Elected as a DFP member without party nomination, to the Mushozoku no Kai parliamentary group, resigned from the party in May 2018, changed to the KDP parliamentary group in January 2019 |
| Akiko Okamoto | D. | Vw. Tōhoku | 1 | Elected for the KDP |
| Mitsunari Okamoto | Kōmeitō | Vw. North Kantō | 3 | |
| Mitsunori Okamoto | D. | Vw. Tōkai | 5 | Elected for the Kibō no Tō |
| Jun'ya Ogawa | D. | Vw. Shikoku | 5 | Elected for the Kibō no Tō, resigned in May 2018, joined the KDP parliamentary group in September 2018 |
| Shinsuke Okuno | L. | Vw. Kinki | 5 | |
| Sōichirō Okuno | D. | Vw. South Kantō | 4th | Elected for the Kibō no Tō |
| Shinji Oguma | D. | Vw. Tōhoku | 3 [+1 in Sangiin] | Elected for the Kibō no Tō |
| Masanobu Ogura | L. | Tokyo 23 | 3 | |
| Hachirō Okonogi | L. | Kanagawa 3 | 8th | |
| Yasuhiro Ozato | L. | Kagoshima 3 | 5 | |
| Ichirō Ozawa | D. | Iwate 3 | 17th | Elected as LP member without party nomination, September – October 2018 temporarily non-attached, parliamentary group with DVP since January 2019 |
| Kiyoshi Odawara | L. | Vw. Tokyo | 3 | |
| Takao Ochi | L. | Vw. Tokyo | 4th | |
| Takayuki Ochiai | D. | Tokyo 6 | 2 | Elected for the KDP |
| Kanako Otsuji | D. | Vw. Kinki | 1 [+1 in Sangiin] | Elected for the KDP |
| Makoto Oniki | L. | Fukuoka 2 | 3 | |
| Itsunori Onodera | L. | Miyagi 6 | 7th | |
| Yūko Obuchi | L. | Gunma 5 | 7th | |
| Asako Omi | L. | Gunma 1 | 2 | |
| Banri Kaieda | D. | Tokyo 1 | 7th | Elected for the KDP |
| Mito Kakizawa | D. | Vw. Tokyo | 4th | Elected for the Kibō no Tō, resigned in May 2018, joining the Shakaihoshō o tatenaosu kokumin kaigi faction in May 2019 |
| Akira Kasai | KPJ | Vw. Tokyo | 5 [+1 in Sangiin] | |
| Hiroshi Kajiyama | L. | Ibaraki 4 | 3 | |
| Takaaki Katsumata | L. | Vw. Tōkai | 3 | |
| Hirofumi Kado | L. | Vw. Kinki | 3 | |
| Ayuko Kato | L. | Yamagata 3 | 2 | |
| Katsunobu Kato | L. | Okayama 5 | 6th | |
| Kanji Katō | L. | Nagasaki 2 | 3 | |
| Hiroaki Kadoyama | L. | Chiba 1 | 3 | |
| Emi Kaneko | D. | Fukushima 1 | 2 [+1 in Sangiin] | Elected as a DFP member without party nomination, to the Mushozoku no Kai parliamentary group, resigned from the party in May 2018, changed to the KDP parliamentary group in January 2019 |
| Shunpei Kaneko | L. | Gifu 4 | 1 | |
| Masuo Kaneko | L. | Kagoshima 2 | 3 | |
| Yasushi Kaneko | L. | Kumamoto 4 | 7th | |
| Katsutoshi Kaneda | L. | Akita 2 | 4 [+2 in Sangiin] | |
| Yōko Kamikawa | L. | Shizuoka 1 | 6th | |
| Noboru Kamitani | L. | Vw. Kinki | 2 | |
| Hiroshi Kamiya | D. | Vw. Hokkaidō | 1 | Elected for the KDP |
| Saichi Kamiyama | L. | Saitama 7 | 3 | |
| Akiko Kamei | D. | Vw. Chūgoku | 1 [+1 in Sangiin] | Elected for the KDP |
| Yoshitami Kameoka | L. | Vw. Tōhoku | 4th | |
| Ichirō Kamoshita | L. | Tokyo 13 | 9 | |
| Katsuyuki Kawai | non-attached | Hiroshima 3 | 7th | Elected for the LDP, leaving in June 2020 |
| Hiroshi Kawauchi | D. | Kagoshima 1 | 6th | Elected for the KDP |
| Jirō Kawasaki | L. | Vw. Tōkai | 12 | |
| Takeo Kawamura | L. | Yamaguchi 3 | 10 | |
| Naoto Kan | D. | Tokyo 18 | 13 | Elected for the KDP |
| Ichirō Kanke | L. | Fukushima 4 | 3 | |
| Kenji Kanda | L. | Vw. Tōkai | 3 | |
| Yutaka Kanda | L. | Vw. North Kantō | 1 | |
| Takashi Kii | D. | Vw. Kyushu | 3 | Elected for the Kibō no Tō |
| Minoru Kiuchi | L. | Shizuoka 7 | 5 | |
| Hitoshi Kikawada | L. | Saitama 3 | 3 | |
| Makiko Kikuta | D. | Niigata 4 | 6th | Elected as a DFP member without party nomination, to the Mushozoku no Kai parliamentary group, resigned from the party at the turn of the year 2017/18, changed to the KDP parliamentary group in May 2018 |
| Nobuo Kishi | L. | Yamaguchi 2 | 3 [+2 in Sangiin] | |
| Fumio Kishida | L. | Hiroshima 1 | 9 | |
| Shuhei Kishimoto | D. | Wakayama 1 | 4th | Elected for the Kibō no Tō |
| Kazuo Kitagawa | Kōmeitō | Osaka 16 | 9 | |
| Tomokatsu Kitagawa | L. | Osaka 12 | 6th | † December 26, 2018 |
| Seigo Kitamura | L. | Nagasaki 4 | 7th | |
| Seiji Kihara | L. | Tokyo 20 | 4th | |
| Minoru Kihara | L. | Kumamoto 1 | 4th | |
| Jirō Kimura | L. | Aomori 3 | 1 | |
| Tetsuya Kimura | L. | Vw. South Kantō | 1 | |
| Yayoi Kimura | L. | Vw. Kinki | 2 | |
| Shūji Kira | D. | Vw. Kyushu | 5 | Elected for the Kibō no Tō |
| Seiichi Kushida | Ishin | Vw. South Kantō | 1 | |
| Shōzō Kudō | L. | Aichi 4 | 3 | |
| Tōru Kunishige | Kōmeitō | Osaka 5 | 3 | |
| Ayano Kunimitsu | L. | Ibaraki 6 | 1 | |
| Hiromichi Kumada | L. | Aichi 1 | 3 | |
| Takahiro Kuroiwa | D. | Niigata 3 | 3 [+1 in Sangiin] | Elected as a DFP member without party nomination, to the Mushozoku no Kai parliamentary group, resigned from the party at the turn of the year 2017/18, switched to the KDP parliamentary group in January 2019, joined the KDP in September 2019 |
| Kōichirō Genba | D. | Fukushima 3 | 9 | Elected as a DFP member without party nomination, non-attached, joining the Mushozoku no Kai parliamentary group in May 2019, leaving the party in April / May 2018 |
| Kentarō Genma | D. | Vw. Tōkai | 1 | Elected for the Kibō no Tō |
| Shinjirō Koizumi | L. | Kanagawa 11 | 4th | |
| Ryūji Koizumi | L. | Saitama 11 | 6th | Elected without party nomination, retrospectively nominated |
| Tarō Kono | L. | Kanagawa 15 | 8th | |
| Masahiro Kōmura | L. | Yamaguchi 1 | 1 | |
| Atsushi Koga | L. | Fukuoka 3 | 3 | |
| Keiji Kokuta | KPJ | Vw. Kinki | 9 | |
| Kōnoskuke Kokuba | L. | Vw. Kyushu | 3 | |
| Toshifumi Kojima | L. | Vw. Chūgoku | 3 | |
| Hiroo Kotera | L. | Shiga 4 | 1 | |
| Shigeyuki Gotō | L. | Nagano 4 | 6th | |
| Yūichi Gotō | D. | Vw. South Kantō | 4th | Elected for the Kibō no Tō |
| Masazumi Gotōda | L. | Tokushima 1 | 7th | |
| Shigeki Kobayashi | L. | Nara 1 | 2 | |
| Takayuki Kobayashi | L. | Chiba 2 | 3 | |
| Fumiaki Kobayashi | L. | Hiroshima 7 | 3 | |
| Yasuko Komiyama | D. | Vw. North Kantō | 6th | Elected for the Kibō no Tō |
| Kazuya Kondo | D. | Vw. Hokuriku-Shin'etsu | 2 | Elected for the Kibō no Tō |
| Shōichi Kondō | D. | Aichi 3 | 8th | Elected for the KDP |
| Takeshi Saiki | D. | Vw. Hokuriku-Shin'etsu | 2 | Elected for the Kibō no Tō |
| Ken Saitō | L. | Chiba 7 | 4th | |
| Tetsuo Saitō | Kōmeitō | Vw. Chūgoku | 9 | |
| Hiroaki Saitō | L. | Vw. Hokuriku-Shin'etsu | 3 | |
| Manabu Sakai | L. | Kanagawa 5 | 4th | |
| Tetsushi Sakamoto | L. | Kumamoto 3 | 6th | |
| Shu Sakurai | D. | Vw. Kinki | 1 | Elected for the KDP |
| Yoshitaka Sakurada | L. | Chiba 8 | 7th | |
| Hiroyoshi Sasagawa | L. | Gunma 3 | 3 | |
| Takahiro Sasaki | D. | Hokkaidō 6 | 4th | Elected for the KDP |
| Hajime Sasaki | L. | Ishikawa 2 | 3 | |
| Akio Sato | L. | Vw. North Kantō | 1 | |
| Akira Sato | L. | Osaka 2 | 5 | |
| Kōji Satō | D. | Hiroshima 6 | 3 | Elected for the Kibō no Tō, leaving in May 2018, (re) joining the DVP parliamentary group in March 2019 |
| Shigeki Sato | Kōmeitō | Osaka 3 | 9 | |
| Tsutomu Sato | L. | Tochigi 4 | 8th | |
| Hidemichi Sato | Kōmeitō | Vw. Hokkaidō | 3 | |
| Yukari Satō | L. | Vw. Kinki | 3 [+1 in Sangiin] | |
| Kazuo Shii | KPJ | Vw. South Kantō | 9 | |
| Tetsuya Shiokawa | KPJ | Vw. North Kantō | 7th | |
| Yasuhisa Shiozaki | L. | Ehime 1 | 8 [+1 in Sangiin] | |
| Ryu Shionoya | L. | Shizuoka 8 | 9 | |
| Kazuhiko Shigetoku | D. | Aichi 12 | 3 | Elected as [Ex-?] DFP member without party nomination [date DFP left the party?], Non-attached, joining the Mushozoku no Kai parliamentary group in 2018 |
| Mamoru Shigemoto | L. | Vw. Kinki | 1 | |
| Takeshi Shina | D. | Iwate 1 | 5 | Elected for the Kibō no Tō, leaving the DVP in May 2019, joining the KDP-DVP parliamentary group in October 2019 |
| Go Shinohara | D. | Vw. South Kantō | 2 | Elected for the KDP |
| Takashi Shinohara | D. | Nagano 1 | 6th | Elected as a DFP member without party nomination, to the Mushozoku no Kai faction, change of faction to the Kibō / DVP faction when the DFP merged to form the DVP in May 2018 |
| Masahiko Shibayama | L. | Saitama 8 | 6th | |
| Tadashi Shimizu | KPJ | Vw. Kinki | 2 | Successor for Takeshi Miyamoto in April 2019 |
| Mikio Shimoji | non-attached | Vw. Kyushu | 6th | Elected for Ishin (also Sōzō chairman), Ishin resignation application / exclusion in January 2020 |
| Mitsu Shimojō | D. | Nagano 2 | 4th | Elected for the Kibō no Tō |
| Hakubun Shimomura | L. | Tokyo 11 | 8th | |
| Yōichi Shiraishi | D. | Ehime 3 | 2 | Elected for the Kibō no Tō |
| Takaki Shirasuka | L. | Chiba 13 | 3 | |
| Masayoshi Shintani | L. | Hiroshima 4 | 3 | |
| Yoshitaka Shindo | L. | Saitama 2 | 7th | |
| Yoshinori Suematsu | D. | Vw. Tokyo | 6th | Elected for the KDP |
| Yoshihide Suga | L. | Kanagawa 2 | 8th | |
| Isshu Sugawara | L. | Tokyo 9 | 6th | |
| Mio Sugita | L. | Vw. Chūgoku | 2 | |
| Kazumi Sugimoto | Ishin | Vw. Tōkai | 3 | |
| Keisuke Suzuki | L. | Kanagawa 7 | 4th | |
| Shun'ichi Suzuki | L. | Iwate 2 | 9 | |
| Shunji Suzuki | L. | Vw. Tōkai | 5 | |
| Takako Suzuki | L. | Vw. Hokkaidō | 3 | |
| Norikazu Suzuki | L. | Yamagata 2 | 3 | |
| Hayato Suzuki | L. | Tokyo 10 | 2 | |
| Ken'ichirō Seki | D. | Vw. Tōkai | 1 | Elected for the Kibō no Tō |
| Yoshihiro Seki | L. | Hyogo 3 | 4th | |
| Kentaro Sonoura | L. | Chiba 5 | 4th | |
| Hiroyuki Sonoda | L. | Vw. Kyushu | 11 | † November 11, 2018 |
| Masaaki Taira | L. | Tokyo 4 | 5 | |
| Takashi Takai | non-attached | Vw. Chūgoku | 3 | Elected for the KDP, application to leave and expulsion from the KDP & D parliamentary group in April 2020 |
| Sanae Takaichi | L. | Nara 2 | 8th | |
| Kei Takagi | L. | Vw. Tokyo | 1 | |
| Tsuyoshi Takagi | L. | Fukui 2 | 7th | |
| Michiyo Takagi | Kōmeitō | Vw. Tokyo | 6th | |
| Yōsuke Takagi | Kōmeitō | Vw. Tokyo | 8th | |
| Rentarō Takagi | D. | Vw. North Kantō | 1 | Elected for the KDP |
| Shuichi Takatori | L. | Niigata 6 | 4th | |
| Chizuko Takahashi | KPJ | Vw. Tōhoku | 6th | |
| Hinako Takahashi | L. | Vw. Tōhoku | 3 | |
| Shunsuke Takei | L. | Miyazaki 1 | 3 | |
| Norio Takeuchi | D. | Vw. Shikoku | 1 [+1 in Sangiin] | Elected for the KDP |
| Yuzuru Takeuchi | Kōmeitō | Vw. Kinki | 5 | |
| Wataru Takeshita | L. | Shimane 2 | 7th | |
| Ryōta Takeda | L. | Fukuoka 11 | 6th | |
| Arata Takebe | L. | Hokkaidō 12 | 3 | |
| Nobuhide Takemura | L. | Shiga 3 | 3 | |
| Naokazu Takemoto | L. | Osaka 15 | 8th | |
| Kaname Tajima | D. | Vw. South Kantō | 6th | Elected for the Kibō no Tō, leaving and joining the Mushozoku no Kai faction in May 2018, switching to the KDP faction in January 2019 |
| Keiichirō Tachibana | L. | Toyama 3 | 4th | |
| Yoshinori Tadokoro | L. | Ibaraki 1 | 3 | |
| Kazunori Tanaka | L. | Kanagawa 10 | 8th | |
| Hideyuki Tanaka | L. | Kyoto 4 | 3 | |
| Ryōsei Tanaka | L. | Saitama 15 | 4th | |
| Yasufumi Tanahashi | L. | Gifu 2 | 8th | |
| Kōichi Tani | L. | Hyogo 5 | 6th | |
| Tomu Tanigawa | L. | Vw. Kinki | 2 | |
| Yaichi Tanigawa | L. | Nagasaki 3 | 6th | |
| Takashi Tanihata | Ishin | Vw. Kinki | 8 [+1 in Sangiin] | Resignation for health reasons in April 2020 |
| Taidō Tanose | L. | Nara 3 | 3 | |
| Tsuyoshi Tabata | L. | Vw. Tōkai | 3 | Resigned in March 2019 over rape allegations |
| Hiroaki Tabata | L. | Toyama 1 | 3 | |
| Denny Tamaki | LP | Okinawa 3 | 4th | Elected as LP member without party nomination, resigned in September 2018 for gubernatorial candidacy in Okinawa |
| Yūichirō Tamaki | D. | Kagawa 2 | 4th | Elected for the Kibō no Tō |
| Takaaki Tamura | KPJ | Vw. Kyushu | 2 | |
| Norihisa Tamura | L. | Mie 1 | 8th | |
| Shinji Tarutoko | non-attached | Vw. Kinki | 6th | Elected for the Kibō no Tō, leaving in May 2018; Resignation in January 2019 for Osaka by-election candidate 12 |
| Kiyoto Tsuji | L. | Tokyo 2 | 3 | |
| Jun Tsushima | L. | Aomori 1 | 3 | |
| Kiyomi Tsujimoto | D. | Osaka 10 | 7th | Elected for the KDP |
| Shinako Tsuchiya | L. | Saitama 13 | 7th | |
| Keisuke Tsumura | D. | Vw. Chūgoku | 6th | Elected for the Kibō no Tō |
| Minoru Debata | L. | Vw. South Kantō | 1 | Successor for Noriko Miyagawa in September 2019 |
| Yoshio Tezuka | D. | Vw. Tokyo | 4th | Elected for the KDP |
| Manabu Terata | D. | Vw. Tōhoku | 5 | Elected for the Kibō no Tō, leaving and joining the KDP parliamentary group in May 2018 |
| Minoru Terada | L. | Hiroshima 5 | 5 | |
| Kantoku Teruya | D. | Okinawa 2 | 6 [+1 in Sangiin] | Elected for the SDP |
| Tōru Doi | L. | Miyagi 1 | 4th | |
| Kiyohiko Tōyama | Kōmeitō | Vw. Kyushu | 4 [+2 in Sangiin] | |
| Kisaburō Tokai | L. | Hyogo 10 | 9 | |
| Hiroyuki Togashi | L. | Akita 1 | 3 | |
| Naomi Tokashiki | L. | Osaka 7 | 4th | |
| Tsutomu Tomioka | L. | Vw. Kyushu | 4th | |
| Shigeyuki Tomita | Kōmeitō | Vw. South Kantō | 8th | |
| Takashi Nagao | L. | Osaka 14 | 3 | |
| Hideki Nagao | D. | Vw. Kinki | 1 | Elected for the KDP |
| Keiko Nagaoka | L. | Vw. North Kantō | 5 | |
| Masaharu Nakagawa | D. | Mie 2 | 8th | Elected as DFP member without party nomination, to the Mushozoku no Kai parliamentary group, resigned from the party in May 2018, switched to the KDP parliamentary group in December 2018, joined the KDP in September 2019 |
| Yasumasa Nagasaka | L. | Aichi 9 | 3 | |
| Akihisa Nagashima | L. | Tokyo 21 | 6th | Elected for the Kibō no Tō, resigned in April / May 2018, founded the Mirai Nippon parliamentary group in October 2018, joined the LDP in June 2019, to the LDP parliamentary group in July 2019 |
| Katsuhito Nakajima | D. | Yamanashi 1 | 3 | Elected as a DFP member without party nomination, non-attached, resigned from the party in May 2018, to the Shakaihoshō o tatenaosu kokumin kaigi faction in January 2019 |
| Yasutaka Nakasone | L. | Vw. North Kantō | 1 | |
| Kazuma Nakatani | D. | Vw. South Kantō | 1 | Elected for the KDP |
| Gen Nakatani | L. | Kochi 1 | 10 | |
| Shin'ichi Nakatani | L. | Vw. South Kantō | 3 | |
| Akira Nagatsuma | D. | Tokyo 7 | 7th | Elected for the KDP |
| Kazuyuki Nakane | L. | Vw. North Kantō | 4th | |
| Hiromasa Nakano | Kōmeitō | Hyogo 8 | 3 | |
| Kishirō Nakamura | D. | Ibaraki 7 | 14th | Elected non-party, non-attached, joining the Mushozoku no Kai parliamentary group in January 2018, switching to the KDP parliamentary group in January 2019 |
| Hiroyuki Nakamura | L. | Hokkaidō 4 | 3 | |
| Nariaki Nakayama | Kibo | Vw. Kyushu | 8th | Remain with the hull or change to the new Kibō no Tō in May 2018 |
| Norihiro Nakayama | L. | Vw. South Kantō | 3 | |
| Yasuhide Nakayama | L. | Osaka 4 | 5 | |
| Toshihiro Nikai | L. | Wakayama 3 | 12 | |
| Hideko Nishioka | D. | Nagasaki 1 | 1 | Elected for the Kibō no Tō |
| Shōji Nishida | L. | Ishikawa 3 | 1 | |
| Akihiro Nishimura | L. | Miyagi 3 | 5 | |
| Chinami Nishimura | D. | Niigata 1 | 5 | Elected for the KDP |
| Yasutoshi Nishimura | L. | Hyogo 9 | 6th | |
| Kosaburo Nishime | L. | Okinawa 4 | 5 | |
| Hideki Niwa | L. | Aichi 6 | 5 | |
| Fukushirō Nukaga | L. | Ibaraki 2 | 12 | |
| Takumi Nemoto | L. | Fukushima 2 | 8th | |
| Yukinori Nemoto | L. | Aichi 15th | 3 | |
| Seiko Noda | L. | Gifu 1 | 9 | |
| Takeshi Noda | L. | Kumamoto 2 | 16 | |
| Yoshihiko Noda | D. | Chiba 4 | 8th | Elected as a DFP member without party nomination, to the Mushozoku no Kai faction, left the party in May 2018 |
| Atsushi Nonaka | L. | Saitama 12 | 3 | |
| Koichi Hagiuda | L. | Tokyo 24 | 5 | |
| Gaku Hashimoto | L. | Okayama 4 | 4th | |
| Hiroshi rabbit | L. | Ishikawa 1 | 7 [+1 in Sangiin] | |
| Kaichi Hasegawa | D. | Vw. North Kantō | 1 | Elected for the KDP |
| Kimie Hatano | KPJ | Vw. South Kantō | 2 [+1 in Sangiin] | |
| Akihiro Hatsushika | non-attached | Vw. Tokyo | 3 | Elected for the KDP, leaving the D parliamentary group in January 2020 |
| Jirō Hatoyama | L. | Fukuoka 6 | 2 | |
| Yasuhiro Hanashi | L. | Ibaraki 3 | 5 | |
| Nobuyuki Baba | Ishin | Osaka 17 | 3 | |
| Yasukazu Hamada | L. | Chiba 12 | 9 | |
| Masakazu Hamachi | Kōmeitō | Vw. Kyushu | 3 | |
| Susumu Hamamura | Kōmeitō | Vw. Kinki | 3 | |
| Motoo Hayashi | L. | Chiba 10 | 9 | |
| Kazuhiro Haraguchi | D. | Saga 1 | 8th | Elected as a DFP member without party nomination, to the Mushozoku no Kai faction, change of faction to the Kibō / DVP faction when the DFP merged to form the DVP in May 2018 |
| Kenji Harada | L. | Osaka 9 | 4th | |
| Yoshiaki Harada | L. | Fukuoka 5 | 8th | |
| Kimichika Hyakutake | L. | Vw. North Kantō | 1 | |
| Yūta Hiyoshi | D. | Vw. Tōkai | 1 | Elected for the KDP, change to LP in October 2018, parliamentary group with DVP since January 2019 |
| Takuya Hirai | L. | Kagawa 1 | 7th | |
| Hiroshi Hiraguchi | L. | Hiroshima 2 | 4th | |
| Katsuei Hirasawa | L. | Tokyo 17 | 8th | |
| Hirofumi Hirano | D. | Osaka 11 | 7th | Elected as a DFP member without party nomination, to the Mushozoku no Kai faction, change of faction to the Kibō / DVP faction when the DFP merged to form the DVP in May 2018 |
| Hajime Hirota | D. | Kochi 2 | 1 [+2 in Sangiin] | Elected as a DFP member without party nomination, to the Mushozoku no Kai faction, left the party in May 2018 |
| Yōichi Fukazawa | L. | Shizuoka 4 | 1 | By-election on April 26, 2020 |
| Teru Fukui | L. | Vw. Shikoku | 7th | |
| Akio Fukuda | D. | Tochigi 2 | 5 | Elected as a DFP member without party nomination, to the Mushozoku no Kai parliamentary group, resigned from the party and joined the KDP (party and parliamentary group) in May 2018 |
| Tatsuo Fukuda | L. | Gunma 4 | 3 | |
| Mamoru Fukuyama | L. | Vw. Shikoku | 3 | |
| Hisayuki Fujii | L. | Hyogo 4 | 3 | |
| Fumitake Fujita | Ishin | Osaka 12 | 1 | By-election on April 21, 2019 |
| Yasufumi Fujino | KPJ | Vw. Hokuriku-Shin'etsu | 2 | |
| Satoshi Fujimaru | L. | Fukuoka 7 | 3 | |
| Takashi Fujiwara | L. | Vw. Tōhoku | 3 | |
| Hajime Funada | L. | Tochigi 1 | 12 | |
| Toshimitsu Funahashi | L. | Vw. Hokkaidō | 2 | |
| Motohisa Furukawa | D. | Aichi 2 | 8th | Elected for the Kibō no Tō |
| Yasushi Furukawa | L. | Vw. Kyushu | 2 | |
| Yoshihisa Furukawa | L. | Miyazaki 3 | 6th | |
| Keiichi Furuta | L. | Vw. Chūgoku | 2 | |
| Shin'ichirō Furumoto | D. | Aichi 11 | 6th | Elected for the Kibō no Tō |
| Keiji Furuya | L. | Gifu 5 | 10 | |
| Noriko Furuya | Kōmeitō | Vw. South Kantō | 6th | |
| Yasushi Hosaka | L. | Saitama 4 | 1 | |
| Tsuyoshi Hoshino | L. | Vw. South Kantō | 3 | |
| Ken'ichi Hosoda | L. | Vw. Hokuriku-Shin'etsu | 3 | |
| Hiroyuki Hosoda | L. | Shimane 1 | 10 | |
| Goshi Hosono | L. | Shizuoka 5 | 7th | Elected for the Kibō no Tō, resigned in May 2018, joined the Nikai faction of the LDP in January 2019, joined the LDP faction in July 2019 |
| Manabu Horii | L. | Hokkaidō 9 | 3 | |
| Noriko Horiuchi | L. | Yamanashi 2 | 3 | Elected without party nomination, retrospectively nominated |
| None in Horikoshi | D. | Vw. North Kantō | 1 | Elected for the KDP |
| Taro Honda | L. | Kyoto 5 | 1 | |
| Hiranao Honda | D. | Vw. Hokkaidō | 3 | Elected for the KDP |
| Seiji Maehara | D. | Kyoto 2 | 9 | Elected as DFP chairman without party nomination, from the beginning to the Kibo faction, party change shortly afterwards |
| Yoshio Maki | D. | Vw. Tōkai | 6th | Elected for the Kibō no Tō |
| Karen Makishima | L. | Kanagawa 17 | 3 | |
| Hideki Makihara | L. | Vw. North Kantō | 4th | |
| Keigo Masuya | Kōmeitō | Vw. Chūgoku | 8th | |
| Midori Matsushima | L. | Tokyo 14 | 6th | |
| Isao Matsuda | D. | Vw. Tōkai | 1 | Elected for the KDP |
| Kōichi Matsudaira | D. | Vw. Hokuriku-Shin'etsu | 1 | Elected for the KDP |
| Hirokazu Matsuno | L. | Chiba 3 | 7th | |
| Jin Matsubara | D. | Vw. Tokyo | 7th | Elected for the Kibō no Tō, resigned in April 2018, joining the Shakaihoshō o tatenaosu kokumin kaigi faction in May 2019 |
| Jun Matsumoto | L. | Kanagawa 1 | 7th | |
| Takeaki Matsumoto | L. | Hyogo 11 | 7th | |
| Fumiaki Matsumoto | L. | Vw. Tokyo | 4th | |
| Yōhei Matsumoto | L. | Tokyo 19 | 4th | |
| Sumio Mabuchi | D. | Vw. Kinki | 6th | Successor (Kibō list) for Shinji Tarutoko in February 2019, participation in KDP-DVP parliamentary group in October 2019; Joined the DVP in June 2020 |
| Hodaka Maruyama | non-attached | Osaka 19th | 3 | Elected for Ishin, expulsion in May 2019, joining NKoku in July 2019 |
| Yasushi Miura | L. | Vw. Chūgoku | 1 | automatic loss of mandate in July 2019 due to candidacy for election to Sangiin |
| Hidehiro Mitani | L. | Vw. South Kantō | 2 | |
| Daiki Michishita | D. | Hokkaidō 1 | 1 | Elected for the KDP |
| Hiromi Mitsubayashi | L. | Saitama 14 | 3 | |
| Norio Mitsuya | L. | Mie 4 | 6th | |
| Takashi Midorikawa | D. | Vw. Tōhoku | 1 | Elected for the Kibō no Tō |
| Teruo Minobe | Ishin | Vw. Kinki | 1 | Successor for Takashi Tanihata in April 2020 |
| Nobuhide Minorikawa | L. | Akita 3 | 5 | |
| Asahiko Mihara | L. | Fukuoka 9 | 8th | |
| Hideki Miyauchi | L. | Fukuoka 4 | 3 | |
| Shin Miyakawa | D. | Vw. South Kantō | 1 | Elected for the KDP |
| Noriko Miyagawa | L. | Vw. South Kantō | 3 | † September 12, 2019 |
| Mitsuhiro Miyakoshi | L. | Toyama 2 | 8th | |
| Masahisa Miyazaki | L. | Vw. Kyushu | 3 | Successor in November 2018 for Hiroyuki Sonoda |
| Hiroyuki Miyazawa | L. | Shizuoka 3 | 3 | |
| Takuma Miyaji | L. | Vw. Kyushu | 2 | |
| Ichirō Miyashita | L. | Nagano 5 | 5 | |
| Takeshi Miyamoto | KPJ | Vw. Kinki | 1 | Resignation in April 2019 for Osaka by-election candidate 12 |
| Tōru Miyamoto | KPJ | Vw. Tokyo | 2 | |
| Shunsuke Mutai | L. | Vw. Hokuriku-Shin'etsu | 3 | |
| Yōji Mutō | L. | Gifu 3 | 4th | |
| Kōichi Munekiyo | L. | Osaka 13 | 2 | |
| Hideki Murai | L. | Saitama 1 | 3 | |
| Seiichirō Murakami | L. | Ehime 2 | 11 | |
| Fumiyoshi Murakami | D. | Vw. Kinki | 3 | Elected for the KDP |
| Yoshio Mochizuki | L. | Shizuoka 4 | 8th | † December 19, 2019 |
| Toshimitsu Motegi | L. | Tochigi 5 | 9 | |
| Kentaro Motomura | Shakaihoshō | Vw. South Kantō | 3 | Elected for the Kibō no Tō, leaving and joining the Mushozoku no Kai faction in May 2018, resignation in March 2019 for mayoral candidacy in Sagamihara |
| Nobuko Motomura | KPJ | Vw. Tōkai | 2 | |
| Eisuke Mori | L. | Chiba 11 | 10 | |
| Natsue Mori | Ishin | Vw. Kinki | 1 | |
| Toshikazu Morita | D. | Vw. North Kantō | 1 | Elected for the Kibō no Tō |
| Hiroshi Moriyama | L. | Kagoshima 4 | 6 [+1 in Sangiin] | |
| Hiroyuki Moriyama | D. | Vw. Kinki | 2 | Elected for the KDP |
| Masahito Moriyama | L. | Hyogo 1 | 4th | |
| Masayoshi Yagami | D. | Vw. Kyushu | 3 | Elected for the KDP |
| Tetsuya Yagi | L. | Vw. Tōkai | 3 | |
| Hajime Yatagawa | D. | Vw. South Kantō | 2 | Successor (Kibō list) for Kentarō Motomura in March 2019 |
| Kazuo Yana | L. | Tochigi 3 | 3 | |
| Kōichi Yamauchi | D. | Vw. Kyushu | 4th | Elected for the KDP |
| Shiori Yamao | D. | Aichi 7 | 3 | Elected non-party (leaving the DFP shortly before the election), member of the KDP parliamentary group from the start, joined the party in December 2017 |
| Tatsumaru Yamaoka | D. | Vw. Hokkaidō | 2 | Elected for the Kibō no Tō |
| Yuriko Yamakawa | D. | Vw. North Kantō | 1 | Elected for the KDP |
| Daishirō Yamagiwa | L. | Kanagawa 18 | 5 | |
| Shun'ichi Yamaguchi | L. | Tokushima 2 | 10 | |
| Taimei Yamaguchi | L. | Saitama 10 | 7th | |
| Tsuyoshi Yamaguchi | L. | Hyogo 12 | 6th | |
| Makoto Yamazaki | D. | Vw. Tōhoku | 2 | Elected for the KDP |
| Takashi Yamashita | L. | Okayama 2 | 3 | |
| Kenji Yamada | L. | Hyogo 7 | 3 | |
| Miki Yamada | L. | Vw. Tokyo | 3 | |
| Kazunori Yamanoi | D. | Vw. Kinki | 7th | Elected for the Kibō no Tō, application to leave and expulsion from the DVP and joining the KDP parliamentary group in July 2019 |
| Ikuo Yamahana | D. | Vw. Tokyo | 4th | Elected for the KDP |
| Kōichi Yamamoto | L. | Ehime 4 | 9 | |
| Kōzō Yamamoto | L. | Fukuoka 10 | 8th | |
| Taku Yamamoto | L. | Vw. Hokuriku-Shin'etsu | 8th | |
| Tomohiro Yamamoto | L. | Vw. South Kantō | 4th | |
| Yūji Yamamoto | L. | Vw. Shikoku | 10 | |
| Wakako Yamamoto | D. | Vw. Hokuriku-Shin'etsu | 1 | Elected for the KDP |
| Tomohiro Yara | D. | Okinawa 3 | 1 | By-election as LP member without party nomination on April 21, 2019 |
| Michiyoshi Yunoki | D. | Vw. Chūgoku | 5 | Elected for the Kibō no Tō, application to leave the DVP and expulsion in August 2018, joining the KDP parliamentary group in July 2019 |
| Katsuhiko Yokomitsu | D. | Vw. Kyushu | 7th | Elected for the KDP |
| Hiroyuki Yoshiie | L. | Kanagawa 16 | 3 [+1 in Sangiin] | |
| Takamori Yoshikawa | L. | Hokkaidō 2 | 6th | |
| Takeru Yoshikawa | L. | Vw. Tōkai | 2 | Successor for Tsuyoshi Tabata in March 2019 |
| Hajime Yoshikawa | D. | Vw. Kyushu | 3 | Elected for the SDP |
| Tsunehiko Yoshida | D. | Vw. Tōkai | 2 | Elected for the KDP |
| Masayoshi Yoshino | L. | Fukushima 5 | 7th | |
| Hirofumi Ryu | D. | Kanagawa 9 | 6th | Elected for the Kibō no Tō, resigned in May 2018, founded the Mirai Nippon parliamentary group in October 2018, with the dissolution of the parliamentary group in July 2019 non-attached, joining the D parliamentary group in January 2020 |
| Kenji Wakamiya | L. | Tokyo 5 | 4th | |
| Eiichirō Washio | L. | Niigata 2 | 5 | Elected as a DFP member without party nomination, non-attached, left the party in November 2017, joined the LDP in March 2019 |
| Yuki Waseda | D. | Kanagawa 4 | 1 | Elected for the KDP |
| Yoshiaki Wada | L. | Hokkaidō 5 | 2 | |
| Kōichi Watanabe | L. | Vw. Hokkaidō | 3 | |
| Shu Watanabe | D. | Shizuoka 6 | 8th | Elected for the Kibō no Tō |
| Hiromichi Watanabe | L. | Chiba 6 | 7th | |
| Yōko Wanibuchi | Kōmeitō | Vw. Kinki | 1 [+1 in Sangiin] |
Individual evidence
- ↑ Shūgiin: 会 派 名 及 び 会 派別 所属 議員 数 , accessed on June 19, 2020.
- ↑ Shūgiin: List of Members , List of Political Groups (Japanese) and previous versions of the same pages, e.g. B. in the Internet Archive
- ↑ a b c 中 川 正 春 、 安 住 淳 、 黒 岩 宇 洋 、 各 衆院 議員 が 入党 届 を 提出 . 立憲 民主党 , September 19, 2019, accessed December 21, 2019 (Japanese).
- ↑ 大 串 博 志 氏 、 立憲 民主党 入党 へ 「政党 合流 に 汗」 . In: Saga Shimbun LiVE. September 24, 2019. Retrieved December 21, 2019 (Japanese).