Current Political Parties
Centrist Reform Alliance
President of the Centrist Reform Alliance
Yoshihiko Noda
Date of birth/date of death: b. May 20 1957.
2026
Constitutional Democratic Party of Japan
Leader of the Constitutional Democratic Party of Japan
Yoshihiko Noda
Date of birth/date of death: b. May 20 1957.
2024 – 2026
Liberal Democratic Party
President of the Liberal Democratic Party
Ichirō Hatoyama
Date of birth/date of death: b. January 1 1883; d. March 7 1959.
1956
Tanzan Ishibashi
Date of birth/date of death: b. September 25 1884; d. April 25 1973.
1956 – 1957
Nobusuke Kishi
Date of birth/date of death: b. November 13 1896; d. August 7 1987.
1957 – 1960
Hayato Ikeda
Date of birth/date of death: b. December 3 1899; d. August 13 1965.
1960 – 1964
Eisaku Satō
Date of birth/date of death: b. March 27 1901; d. June 3 1975.
1964 – 1972
Kakuei Tanaka
Date of birth/date of death: b. March 7 1961.
1972 – 1974
Takeo Miki
Date of birth/date of death: b. March 17 1907; d. November 14 1988.
1974 – 1976
Takeo Fukuda
Date of birth/date of death: b. January 14 1905; d. July 5 1995.
1976 – 1978
Masayoshi Ōhira
Date of birth/date of death: b. March 12 1910; d. June 12 1980.
1978 – 1980
Zenkō Suzuki
Date of birth/date of death: b. January 11 1911; d. July 19 2004.
1980 – 1982
Yasuhiro Nakasone
Date of birth/date of death: b. May 27 1918; d. November 29 2019.
1982 – 1987
Noboru Takeshita
Date of birth/date of death: b. February 26 1924; d. June 19 2000.
1987 – 1989
Sōsuke Uno
Date of birth/date of death: b. August 27 1922; d. May 19 1998.
1989
Toshiki Kaifu
Date of birth/date of death: b. January 2 1931; d. January 9 2022.
1989 – 1991
Kiichi Miyazawa
Date of birth/date of death: b. October 8 1919; d. June 28 2007.
1991 – 1993
Yōhei Kōno
Date of birth/date of death: b. January 15 1937.
1993 – 1995
Ryutaro Hashimoto
Date of birth/date of death: b. July 29 1937; d. July 1 2006.
1995 – 1998
Keizō Obuchi
Date of birth/date of death: b. June 25 1937; d. May 14 2000.
1998 – 2000
Yoshirō Mori
Date of birth/date of death: b. July 14 1937.
2000 – 2001
Junichiro Koizumi
Date of birth/date of death: b. January 8 1942.
2001 – 2006
Shinzo Abe
Date of birth/date of death: b. September 21 1954; d. July 8 2022.
2006 – 2007
Yasuo Fukuda
Date of birth/date of death: b. July 16 1936.
2007 – 2008
Tarō Asō
Date of birth/date of death: b. September 20 1940.
2008 – 2009
Sadakazu Tanigaki
Date of birth/date of death: b. March 7 1945.
2009 – 2012
Shinzo Abe
Date of birth/date of death: b. September 21 1954; d. July 8 2022.
2012 – 2020
Yoshihide Suga
Date of birth/date of death: b. December 6 1948.
2020 – 2021
Fumio Kishida
Date of birth/date of death: b. July 29 1957.
2021 – 2024
Shigeru Ishiba
Date of birth/date of death: b. February 4 1957.
2024 – 2025
Sanae Takaichi
Date of birth/date of death: b. March 7 1961.
2025 – present
Secretary-General of the Liberal Democratic Party
Nobusuke Kishi
Date of birth/date of death: b. November 13 1896; d. August 7 1987.
1955 – 1956
Takeo Miki
Date of birth/date of death: b. March 17 1907; d. November 14 1988.
1956 – 1957
Takeo Miki
Date of birth/date of death: b. March 17 1907; d. November 14 1988.
1964 – 1965
Kakuei Tanaka
Date of birth/date of death: b. March 7 1961.
1965 – 1966
Kakuei Tanaka
Date of birth/date of death: b. March 7 1961.
1968 – 1971
Yasuhiro Nakasone
Date of birth/date of death: b. May 27 1918; d. November 29 2019.
1974 – 1976
Masayoshi Ōhira
Date of birth/date of death: b. March 12 1910; d. June 12 1980.
1976 – 1978
Noboru Takeshita
Date of birth/date of death: b. February 26 1924; d. June 19 2000.
1986 – 1987
Ryutaro Hashimoto
Date of birth/date of death: b. July 29 1937; d. July 1 2006.
1989
Ichirō Ozawa
Date of birth/date of death: b. May 24 1942.
1989 – 1991
Keizō Obuchi
Date of birth/date of death: b. June 25 1937; d. May 14 2000.
1991
Shinzo Abe
Date of birth/date of death: b. September 21 1954; d. July 8 2022.
2003 – 2004
Tarō Asō
Date of birth/date of death: b. September 20 1940.
2007
Tarō Asō
Date of birth/date of death: b. September 20 1940.
2008
Nobuteru Ishihara
Date of birth/date of death: b. April 19 1957.
2010 – 2012
Shigeru Ishiba
Date of birth/date of death: b. February 4 1957.
2012 – 2014
Sadakazu Tanigaki
Date of birth/date of death: b. March 7 1945.
2014 – 2016
Toshimitsu Motegi
Date of birth/date of death: b. October 7 1955.
2021 – 2024
Hiroshi Moriyama
Date of birth/date of death: b. April 8 1945.
2024 – present
Social Democratic Party
Chair of the Social Democratic Party
Tomiichi Murayama
Date of birth/date of death: b. March 3 1924; d. October 17 2025.
1996
Takako Doi
Date of birth/date of death: b. November 30 1928; d. September 20 2014.
1996 – 2003
Defunct Political Parties
Democratic Party
President of the Democratic Party
Hitoshi Ashida
Date of birth/date of death: b. November 15 1887; d. June 20 1959.
1947 – 1948
Democratic Liberal Party
President of the Democratic Liberal Party
Shigeru Yoshida
Date of birth/date of death: b. September 22 1878; d. October 20 1967.
1948 – 1950
Democratic Party of Japan
President of the Democratic Party of Japan
Naoto Kan
Date of birth/date of death: b. October 10 1946.
1998 – 1999
Yukio Hatoyama
Date of birth/date of death: b. February 11 1947.
1999 – 2002
Naoto Kan
Date of birth/date of death: b. October 10 1946.
2002 – 2004
Ichirō Ozawa
Date of birth/date of death: b. May 24 1942.
2006 – 2009
Yukio Hatoyama
Date of birth/date of death: b. February 11 1947.
2009 – 2010
Naoto Kan
Date of birth/date of death: b. October 10 1946.
2010 – 2011
Yoshihiko Noda
Date of birth/date of death: b. May 20 1957.
2011 – 2012
Secretary-General of the Democratic Party of Japan
Naoto Kan
Date of birth/date of death: b. October 10 1946.
2000 – 2002
Ichirō Ozawa
Date of birth/date of death: b. May 24 1942.
2009 – 2010
Yoshihiko Noda
Date of birth/date of death: b. May 20 1957.
2016 – 2017
Democratic Party of Japan (1996)
Leader of the Democratic Party of Japan
Naoto Kan
Date of birth/date of death: b. October 10 1946.
1996 – 1998
Yukio Hatoyama
Date of birth/date of death: b. February 11 1947.
1996 – 1997
Imperial Rule Assistance Association
President of the Imperial Rule Assistance Association
Hideki Tojo
Date of birth/date of death: b. December 30 1884; d. December 23 1948.
1941 – 1944
Kuniaki Koiso
Date of birth/date of death: b. March 22 1880; d. November 3 1950.
1944 – 1945
Baron Kantarō Suzuki
Date of birth/date of death: b. January 18 1868; d. April 17 1948.
1945
Japan Democratic Party
President of the Japan Democratic Party
Ichirō Hatoyama
Date of birth/date of death: b. January 1 1883; d. March 7 1959.
1954 – 1955
Japan Liberal Party
President of the Japan Liberal Party
Ichirō Hatoyama
Date of birth/date of death: b. January 1 1883; d. March 7 1959.
1945 – 1946
Shigeru Yoshida
Date of birth/date of death: b. September 22 1878; d. October 20 1967.
1946 – 1948
Kenseikai
President of the Kenseikai
Viscount Katō Takaaki
Date of birth/date of death: b. January 3 1860; d. January 28 1926.
1916 – 1926
Liberal Party
President of the Liberal Party
Ichirō Ozawa
Date of birth/date of death: b. May 24 1942.
1998 – 2003
Liberal Party (1950)
President of the Liberal Party
Shigeru Yoshida
Date of birth/date of death: b. September 22 1878; d. October 20 1967.
1950 – 1954
Japan New Party
Leader of the Japan New Party
Morihiro Hosokawa
Date of birth/date of death: b. January 14 1938.
1992 – 1994
National Cooperative Party
Leader of the National Cooperative Party
Takeo Miki
Date of birth/date of death: b. March 17 1907; d. November 14 1988.
1947 – 1950
New Frontier Party
Leader of the New Frontier Party
Toshiki Kaifu
Date of birth/date of death: b. January 2 1931; d. January 9 2022.
1994 – 1995
Ichirō Ozawa
Date of birth/date of death: b. May 24 1942.
1995 – 1997
Secretary-General of the New Frontier Party
Ichirō Ozawa
Date of birth/date of death: b. May 24 1942.
1994 – 1995
Rikken Minseitō
President of Rikken Minseitō
Hamaguchi Osachi
Date of birth/date of death: b. April 1 1870; d. August 26 1931.
1927 – 1931
Rikken Seiyūkai
President of Rikken Seiyūkai
Hara Takashi
Date of birth/date of death: b. March 15 1856; d. November 4 1921.
1914 – 1921
Viscount Takahashi Korekiyo
Date of birth/date of death: b. July 27 1854; d. February 26 1936.
1921 – 1925
Baron Tanaka Giichi
Date of birth/date of death: b. June 22 1864; d. September 29 1929.
1925 – 1929
Inukai Tsuyoshi
Date of birth/date of death: b. June 4 1855; d. May 15 1932.
1929 – 1932
Ichirō Hatoyama (*acting)
Date of birth/date of death: b. January 1 1883; d. March 7 1959.
1937 – 1939
Secretary General of Rikken Seiyūkai
Ichirō Hatoyama
Date of birth/date of death: b. January 1 1883; d. March 7 1959.
1926 – 1927
Japan Socialist Party
Chair of the Japan Socialist Party
Takako Doi
Date of birth/date of death: b. November 30 1928; d. September 20 2014.
1986 – 1991
Makoto Tanabe
Date of birth/date of death: b. February 25 1922; d. July 2 2015.
1991 – 1993
Sadao Yamahana
Date of birth/date of death: b. February 26 1938; d. July 14 1999.
1993
Tomiichi Murayama
Date of birth/date of death: b. March 3 1924; d. October 17 2025.
1993 – 1996