Deputy Prime Minister of Japan
副総理
Emblem of the Government of Japan
Incumbent Vacant since 4 October 2021
Style	Mr. Deputy Prime Minister
Member of	Cabinet National Security Council
Appointer	The Prime Minister
Term length	No fixed term
Inaugural holder	Kijūrō Shidehara
Formation	3 May 1947
Succession	First
Salary	¥20,916,000

The deputy prime minister of Japan (副総理, Fuku-sōri) is a post given to a minister of state designated by the prime minister of Japan to temporarily perform the prime minister's duties when they are not able to.^[1] The prime minister does not have to designate a successor, and as such the position is not always filled.

The position has been vacant since 4 October 2021, but the most recent, and longest serving, deputy prime minister was Tarō Asō, who served as minister of finance concurrently. The deputy prime minister only exercises the functions of prime minister until the National Diet selects a new prime minister.

Portrait		Name Office (Lifespan)	Term of office			Party	Prime Minister (Term of office)	Government
			Took office	Left office	Duration
		Kijūrō Shidehara 幣原 喜重郎 Rep for Osaka 3rd (1872–1951)	3 May 1947	24 May 1947	22 days	Japan Progressive	Shigeru Yoshida (1946–1947)	Yoshida I
Vacant (24 May – 1 June 1947)							Tetsu Katayama (1947–1948)	Katayama
		Hitoshi Ashida 蘆田 均 Rep for Kyōto 2nd (1887–1959)	1 June 1947	10 March 1948	284 days	Democratic
		Suehiro Nishio 西尾 末広 Rep for Osaka 2nd (1891–1981)	10 March 1948	6 July 1948	119 days	Democratic	Hitoshi Ashida (1948)	Ashida
Vacant (6 July – 19 October 1948)
							Shigeru Yoshida (1948–1954)	Yoshida II
		Jōji Hayashi [jp] 林 譲治 Rep for Kōchi at-large (1889–1960)	19 October 1948	13 March 1951	2 years, 146 days	Democratic Liberal
								Yoshida III
						Liberal
Vacant (13 March 1951 – 28 November 1952)
								Yoshida IV
		Taketora Ogata 緒方 竹虎 Rep for Fukuoka 1st (1888–1956)	28 November 1952	10 December 1954	2 years, 13 days	Liberal
								Yoshida V
		Mamoru Shigemitsu 重光 葵 Rep for Ōita 2nd (1887–1957)	10 December 1954	23 December 1956	2 years, 14 days	Japan Democratic	Ichirō Hatoyama (1954–1956)	Hatoyama I. I
								Hatoyama I. II
						Liberal Democratic
								Hatoyama I. III
Vacant (23 December 1956 – 20 May 1957)							Tanzan Ishibashi (1956–1957)	Ishibashi
							Nobusuke Kishi (1957–1960)	Kishi I
		Mitsujirō Ishii 石井 光次郎 Rep for Fukuoka 3rd (1889–1981)	20 May 1957	12 June 1958	1 year, 24 days	Liberal Democratic
Vacant (12 June 1958 – 18 June 1959)								Kishi II
		Shūji Masutani 益谷 秀次 Rep for Ishikawa 2nd (1888–1973)	18 June 1959	19 July 1960	1 year, 32 days	Liberal Democratic
Vacant (19 July 1960 – 29 August 1972)							Hayato Ikeda (1960–1964)	Ikeda I
								Ikeda II
								Ikeda III
							Eisaku Satō (1964–1972)	Satō I
								Satō II
								Satō III
							Kakuei Tanaka (1972–1974)	Tanaka K. I
		Takeo Miki 三木 武夫 Rep for Tokushima at-large (1907–1988)	29 August 1972	12 July 1974	1 year, 318 days	Liberal Democratic
								Tanaka K. II
Vacant (12 July – 9 December 1974)
		Takeo Fukuda 福田 赳夫 Rep for Gunma 3rd (1905–1995)	9 December 1974	6 November 1976	1 year, 334 days	Liberal Democratic	Takeo Miki (1974–1976)	Miki
Vacant (6 November 1976 – 11 June 1980)
							Takeo Fukuda (1976–1978)	Fukuda T.
							Masayoshi Ōhira (1978–1980)	Ōhira I
								Ōhira II
		Masayoshi Ito[a] 伊東 正義 Rep for Fukushima 2nd (1910–1980)	12 June 1980	17 July 1980	36 days	Liberal Democratic
							Masayoshi Ito (1980)
Vacant (17 July 1980 – 22 July 1986)							Zenkō Suzuki (1980–1982)	Suzuki Z.
							Yasuhiro Nakasone (1982–1987)	Nakasone I
								Nakasone II
		Shin Kanemaru 金丸 信 Rep for Yamanashi at-large (1914–1996)	22 July 1986	6 November 1987	1 year, 108 days	Liberal Democratic		Nakasone III
		Kiichi Miyazawa 宮澤 喜一 Rep for Hiroshima 3rd (1919–2007)	6 November 1987	9 December 1988	1 year, 34 days	Liberal Democratic	Noboru Takeshita (1987–1989)	Takeshita
Vacant (9 December 1988 – 5 November 1991)
							Sōsuke Uno (1989)	Uno
							Toshiki Kaifu (1989–1991)	Kaifu I
								Kaifu II
		Michio Watanabe 渡辺 美智雄 Rep for Tochigi 1st (1923–1995)	5 November 1991	7 April 1993	1 year, 154 days	Liberal Democratic	Kiichi Miyazawa (1991–1993)	Miyazawa
		Masaharu Gotōda 後藤田 正晴 Rep for Tokushima at-large (1914–2005)	8 April 1993	9 August 1993	124 days	Liberal Democratic
		Tsutomu Hata 羽田 孜 Rep for Nagano 2nd (1935–2017)	9 August 1993	28 April 1994	263 days	Renewal	Morihiro Hosokawa (1993–1994)	Hosokawa
Vacant (28 April – 30 June 1994)							Tsutomu Hata (1994)	Hata
		Yōhei Kōno 河野 洋平 Rep for Kanagawa 5th (born 1937)	30 June 1994	2 October 1995	1 year, 95 days	Liberal Democratic	Tomiichi Murayama (1994–1996)	Murayama
		Ryutaro Hashimoto 橋本 龍太郞 Rep for Okayama 2nd (1937–2006)	2 October 1995	11 January 1996	102 days	Liberal Democratic
		Wataru Kubo 橋本 龍太郞 Councillor for Kagoshima at-large (1929–2003)	11 January 1996	7 November 1996	302 days	Social Democratic	Ryutaro Hashimoto (1996–1998)	Hashimoto I
Vacant (7 November 1996 – 16 September 2009)								Hashimoto II
							Keizō Obuchi (1998–2000)	Obuchi
							Yoshirō Mori (2000–2001)	Mori I
								Mori II
							Junichiro Koizumi (2001–2006)	Koizumi I
								Koizumi II
								Koizumi III
							Shinzo Abe (2006–2007)	Abe S. I
							Yasuo Fukuda (2007–2008)	Fukuda Y.
							Tarō Asō (2008–2009)	Asō
		Naoto Kan 菅 直人 Rep for Tokyo 18th (born 1946)	16 September 2009	8 June 2010	266 days	Democratic	Yukio Hatoyama (2009–2010)	Hatoyama Y.
Vacant (8 June 2010 – 13 January 2012)							Naoto Kan (2010–2011)	Kan
							Yoshihiko Noda (2011–2012)	Noda
		Katsuya Okada 岡田 克也 Rep for Mie 3rd (born 1953)	13 January 2012	26 December 2012	349 days	Democratic
		Tarō Asō 麻󠄁生 太郞 Rep for Fukuoka 8th (born 1940)	26 December 2012	4 October 2021	8 years, 283 days	Liberal Democratic	Shinzo Abe (2012–2020)	Abe S. II
								Abe S. III
								Abe S. IV
							Yoshihide Suga (2020–2021)	Suga
Vacant (since 4 October 2021)							Fumio Kishida (2021–2024)	Kishida I
								Kishida II
							Shigeru Ishiba (2024–2025)	Ishiba I
								Ishiba II
							Sanae Takaichi (since 2025)	Takaichi I
								Takaichi II

• Kenkyusha's New Japanese-English Dictionary, Kenkyusha Limited, Tokyo 1991, ISBN 4-7674-2015-6