Shinjirō Koizumi

Shinjirō Koizumi
Shinjirō Koizumi
小泉進次郎
	Official portrait, 2025
Minister of Agriculture, Forestry and Fisheries
	Incumbent
	Assumed office ; 21 May 2025
Prime Minister	Shigeru Ishiba
Preceded by	Taku Etō
Minister of the Environment
	In office; 11 September 2019 – 4 October 2021
Prime Minister	Shinzō Abe; Yoshihide Suga
Preceded by	Yoshiaki Harada
Succeeded by	Tsuyoshi Yamaguchi
Member of the House of Representatives; for Kanagawa's 11th district;
	Incumbent
	Assumed office ; 31 August 2009
Preceded by	Junichiro Koizumi
Personal details
Born	14 April 1981; Yokosuka, Kanagawa, Japan
Political party	Liberal Democratic
Spouse(s)	Christel Takigawa (m. 2019)
Children	2
Parents	Junichiro Koizumi (father); Kayoko Miyamoto (mother)
Relatives	Kotaro Koizumi (brother); Jun'ya Koizumi (grandfather); Yoshie Koizumi (grandmother); Koizumi Matajirō (great-grandfather)
Alma mater	Kanto Gakuin University (BEc); Columbia University (MA)

Shinjirō Koizumi (小泉進次郎, Koizumi Shinjirō, born 14 April 1981) is a Japanese politician who has been the Minister of Agriculture, Forestry and Fisheries since 2025. He was the Minister of the Environment from 2019 until 2021. He has also been a Member of the House of Representatives for the Liberal Democratic Party since 2009. He is the second son of former Prime Minister Junichirō Koizumi.^[1]

In January 2020, Koizumi received international news attention when he announced his plans to take two weeks of paternity leave when his first child was born.^[2]^[3]

In September 2024, Koizumi announced his candidacy for the Liberal Democratic leadership election to replace Prime Minister Fumio Kishida.^[4] He lost the election to former Defense Minister Shigeru Ishiba on 27 September 2024.^[5]

After Prime Minister Ishiba resigned, Koizumi announced his second leadership candidacy in September 2025 for the 2025 leadership election.^[6]

References

↑ "2 Japanese ministers visit controversial Yasukuni war shrine". AFP. 15 August 2013. Retrieved 9 January 2014.
↑ Hollingsworth, Julia (16 January 2020). "A Japanese minister is making waves for taking paternity leave". CNN. Retrieved 2020-09-22.
↑ Rich, Motoko (2020-01-15). "A Japanese Politician Is Taking Paternity Leave. It's a Big Deal". The New York Times. ISSN 0362-4331. Retrieved 2021-12-28.
↑ "小泉進次郎氏、自民総裁選に出馬へ 40代2人目、世代交代も争点" (in Japanese). Yahoo!ニュース. 2024-08-20. Archived from the original on 2024-08-20. Retrieved 2024-08-20.
↑ "【速報中】自民党新総裁に石破氏決選投票で高市氏破る". 日本経済新聞 (in Japanese). 2024-09-27. Retrieved 2024-09-27.
↑ Sugiyama, Satoshi; Yamazaki, Makiko (2025-09-16). "Japan's Koizumi, Hayashi run for leadership of ruling party". Reuters. Retrieved 2025-09-17.

[1] "2 Japanese ministers visit controversial Yasukuni war shrine". AFP. 15 August 2013. Retrieved 9 January 2014.

[2] Hollingsworth, Julia (16 January 2020). "A Japanese minister is making waves for taking paternity leave". CNN. Retrieved 2020-09-22.

[3] Rich, Motoko (2020-01-15). "A Japanese Politician Is Taking Paternity Leave. It's a Big Deal". The New York Times. ISSN 0362-4331. Retrieved 2021-12-28.

[4] "小泉進次郎氏、自民総裁選に出馬へ 40代2人目、世代交代も争点" (in Japanese). Yahoo!ニュース. 2024-08-20. Archived from the original on 2024-08-20. Retrieved 2024-08-20.

[5] "【速報中】自民党新総裁に石破氏決選投票で高市氏破る". 日本経済新聞 (in Japanese). 2024-09-27. Retrieved 2024-09-27.

[6] Sugiyama, Satoshi; Yamazaki, Makiko (2025-09-16). "Japan's Koizumi, Hayashi run for leadership of ruling party". Reuters. Retrieved 2025-09-17.

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