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
Composition
 | ||||
| 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 | |
| Independent | 1 | |||
| 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 District | 1 | 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.
House of Councillors
Composition
 | |||||||||
| 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 | 26 | 42 | 68 | 24 | 52 | 76 | 144 | ||
| Liberal Democratic Party Jiyūminshutō | Liberal Democratic Party (LDP) | 19 | 35 | 54 | 18 | 45 | 63 | 117 | |
| Komeito Kōmeitō | Komeito | 7 | 7 | 14 | 6 | 7 | 13 | 27 | |
| Opposition | 23 | 26 | 49 | 25 | 20 | 45 | 94 | ||
| The Constitutional Democratic Party of Japan and Social Democratic Party Rikken-minshu / Shamin | Constitutional Democratic Party (CDP) Social Democratic Party (SDP) Independents |
8 | 14 | 22 | 8 | 10 | 18 | 40 | |
| Nippon Ishin (Japan Innovation Party) Nippon Ishin no Kai | Nippon Ishin no Kai | 4 | 4 | 8 | 8 | 4 | 12 | 20 | |
| Democratic Party For the People and The Shin-Ryokufukai Kokumin-minshutō / Shin-Ryokufūkai | Democratic Party for the People (DPFP) Independents |
3 | 4 | 7 | 3 | 3 | 6 | 13 | |
| Japanese Communist Party Nihon Kyōsantō | Japanese Communist Party (JCP) | 4 | 3 | 7 | 3 | 1 | 4 | 11 | |
| Reiwa Shinsengumi Reiwa Shinsengumi | Reiwa Shinsengumi | 2 | 0 | 2 | 2 | 1 | 3 | 5 | |
| The Party to Protect People from NHK NHK kara kokumin o mamoru tō | Seijika Joshi 48 Party | 1 | 0 | 1 | 1 | 0 | 1 | 2 | |
| Okinawa Whirlwind Okinawa no Kaze | Okinawa Social Mass Party | 0 | 1 | 1 | 0 | 1 | 1 | 2 | |
| Independents (government & opposition) | 1 | 4 | 5 | 1 | 2 | 3 | 8 | ||
| Independents Members not affiliated with any parliamentary caucus | LDP 1 (President) CDP 1 (Vice President) Sanseitō 1 Independents 7 |
2 | 5 | 7 | 1 | 2 | 3 | 10 | |
| Total | 50 | 73 | 123 | 50 | 74 | 124 | 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 | 0 | 1 | 1 | 0 | 0 | 0 | 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
References
- ↑ "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.
- ↑ House of Representatives: Strength of Political Groups in the House of Representatives
- ↑ House of Representatives: List of members, List of parliamentary groups, List of members by parliamentary group (in Japanese)
- ↑ "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.
- ↑ "Strength of the Political Groups in the House of Councillors". House of Councillors. Retrieved 2022-12-23.
- ↑ 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.
- ↑ House of Councillors: Strength of the Political Groups in the House of Councillors
- ↑ List of caucuses (in Japanese)
- ↑ 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)
External links
- "Composition of the House of Representatives". Retrieved August 5, 2016.
- "List of the Members of the House of Councillors". Retrieved August 5, 2016.
See also
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