Parties
Parliamentary
Government
Opposition
- 立憲民主党 (Constitutional Democratic Party of Japan)
- 日本維新の会 (Japan Innovation Party)
- 国民民主党 (Democratic Party for the People)[1]
- 日本共産党 (Japanese Communist Party)
- れいわ新選組 (Reiwa Shinsengumi)
- 社会民主党 (Social Democratic Party)
- NHK党 (NHK Party)
- 参政党 (Party of Do it Yourself !!)
Extraparliamentary
- 維新政党・新風 (Restoration Political Party - New Wind)
- 新社会党 (New Socialist Party of Japan)
- 幸福実現党 (Happiness Realization Party)
- 緑の党グリーンズジャパン (Green Party Greens Japan)
- 支持政党なし (No Party to Support)
- 日本第一党 (Japan First Party)
- 労働の解放をめざす労働者党 (Workers Party Aiming for Liberation of Labor)
- 新党くにもり(Kunimori Conservative Party)
- 国民主権党 (Popular Sovereignty Party)
- 新党やまと (New Yamato Party)
- ファーストの会 (First no Kai)
- ごぼうの党 (Burdock Party)
Local parties
- 沖縄社会大衆党 (Okinawa Social Mass Party)
- 全国市民政治ネットワーク (Japan People's Political Network)
- 新党大地 (New Party Daichi)
- 大阪維新の会 (Osaka Restoration Association)
- 減税日本 (Genzei Nippon)
- 都民ファーストの会 (Tomin First no Kai)
- あたらしい党 (New Party)
- つばさの党 (Tsubasa Party)
Historical
- 自由党 (Liberal Party) (1945-1948)
- 日本社会党 (Japan Socialist Party) (1945-1996)
- 日本民主党 (Democratic Party) (1947-1950)
- 自由党 (Liberal Party) (1950-1955)
- 改進党 (Kaishintō) (1952-1954)
- 日本民主党 (Democratic Party) (1954-1955)
- 民主社会党 (Democratic Socialist Party) (1960-1994)
- 新自由クラブ (New Liberal Club) (1976-1986)
- 社会民主連合 (Socialist Democratic Federation) (1978-1994)
- スポーツ平和党 (Sports And Peace Party) (1989-2006)
- 日本新党 (Japan New Party) (1992-1994)
- 新生党 (Japan Renewel Party) (1993-1994)
- 新党さきがけ (New Party Sakigake) (1993-2004)
- 自由連合 (Liberal League) (1994-2005)
- 新進党 (New Frontier Party) (1994-1997)
- 自由党 (Liberal Party) (1998-2003)
- 民主党 (Democratic Party of Japan) (1998-2016)
- 保守新党 (New Conservative Party) (2000-2003)
- 国民新党 (People's New Party) (2005-2013)
- 新党日本 (New Party Nippon) (2005-2015)
- 新党改革 (New Renaissance Party) (2008-2016)
- みんなの党 (Your Party) (2009-2014)
- 太陽の党 (Sunrise Party) (2010-2012)
- みどりの風 (Green Wind) (2012-2013)
- 日本未来の党 (Tomorrow Party of Japan (2012-2013)
- 日本維新の会 (Japan Restoration Party) (2012-2014)
- 自由党 (Liberal Party) (2012-2019)
- 結いの党 (Unity Party) (2013-2014)
- 維新の党 (Japan Innovation Party) (2014-2016)
- 日本のこころ (Party for Japanese Kokoro) (2014-2018)
- 民進党 (Democratic Party) (2016-2018)
- File:Progress.png 国民怒りの声 (Angry Voice of the People) (2016-2018)
- 希望の党 (Party of Hope) (2017-2021)
Empire of Japan
- 愛国公党 (Public Party of Patriots) (1874 - 1875)
- 愛国社 (Society of Patriots) (1875)
- 立憲帝政党 (Constitutional Imperial Rule Party) (1882 - 1883)
- 自由党 (Liberal Party) (1890 - 1898)
- 進歩党 (Progressive Party) (1896 - 1898)
- 憲政党 (Constitutional Party) (1898 - 1900)
- 立憲政友会 (Association of Friends of Constitutional Government) (1900 - 1940)
- 双葉会(陸軍) (Double Leaf Society) (1907 - 1916)
- 皇道派 (Imperial Way Faction) (1920s - 1936)
- 統制派 (Control Faction) (1920s - 1936)
- 艦隊派 (Fleet Faction) (1921 - 1934)
- 条約派 (Treaty Faction) (1921 - 1936)
- 革新倶楽部 (Reformist Club) (1922 - 1925)
- 国本社 (National Foundation Society) (1924 - 1936)
- 社会民衆党 (Social Democratic Party) (1926 - 1932)
- 日本労農党 (Japan Labour-Farmer Party) (1926 - 1928)
- 労働農民党 (Labour-Farmer Party) (1926 - 1928)
- 立憲民政党 (Constitutional Democratic Party) (1927 - 1940)
- 桜会 (Cherry Blossom Society) (1930 - 1931)
- 社会大衆党 (Social Mass Party) (1932 - 1940)
- 国民同盟 (National Citizens' Alliance) (1932 - 1940)
- 東方会 (Society of the East) (1936 - 1944)
- 大政翼贊會/大政翼賛会 (Imperial Rule Assistance Association) (1940 - 1945)
- 大日本青年党 (Great Japan Youth Party) (1937 - 1945)
- 大日本翼賛壮年団 (Imperial Rule Assistance Young Men's Corps) (1942 - 1945)
List of Prime Ministers (WIP)
Meji Era (1868-1912)
WIP
Taishō Era (1912-1926)
WIP
Early Showa Period (1926-1945)
WIP
Modern (1945-)
- Shigeru Yoshida (1946-1947, 1948-1954) ( LDP)
- Tetsu Katayama (1947-1948) (DSP)
- Nobusuke Kishi (1957-1960) ( LDP)
- Hayato Ikeda (1960-1964) ( LDP)
- Eisaku Satō (1964-1972) ( LDP)
- Kakuei Tanaka (1972-1974) ( LDP)
- Yasuhiro Nakasone (1982-1987) ( LDP)
- Morihiro Hosokawa (1993-1994) (JNP)
- Tomiichi Murayama (1994-1996) (JSP)
- Keizō Obuchi (1998-2000) ( LDP)
- Yoshirō Mori (2000-2001) ( LDP)
- Junichirō Koizumi (2001-2006) ( LDP)
- Shinzo Abe (2006-2007, 2012-2020) ( LDP)
- Yasuo Fukuda (2007-2008) ( LDP)
- Tarō Asō (2008-2009) ( LDP)
- Yukio Hatoyama (2009-2010) (DPJ)
- Naoto Kan (2010-2011) (DPJ)
- Yoshihiko Noda (2011-2012) (DPJ)
- Yoshihide Suga (2020-2021) ( LDP)
- Fumio Kishida (2021-) ( LDP)
- ↑ The Democratic Party for the People official ideology is "Reformist Centrism"