Keiichi Ishii

Keiichi Ishii
石井 啓一
Ishii in 2023
Vice Speaker of the House of Representatives
Assumed office
18 February 2026
SpeakerEisuke Mori
Preceded byKōichirō Genba
Chief Representative of Komeito
In office
28 September 2024 – 9 November 2024
Preceded byNatsuo Yamaguchi
Succeeded byTetsuo Saito
Minister of Land, Infrastructure, Transport and Tourism
In office
7 October 2015 – 11 September 2019
Prime MinisterShinzo Abe
Preceded byAkihiro Ota
Succeeded byKazuyoshi Akaba
Member of the House of Representatives
Assumed office
9 February 2026
ConstituencyNorthern Kanto PR
In office
19 July 1993 – 9 October 2024
Constituency
Personal details
Born (1958-03-20) 20 March 1958
PartyCRA (since 2026)
Other political
affiliations
Komeito (1992–1994)
NFP (1994–1998)
Komeito (1998–2026)
Alma materUniversity of Tokyo
OccupationConstruction engineerPolitician
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Keiichi Ishii (石井 啓一, Ishii Keiichi; born 20 March 1958) is a Japanese politician who serves as Vice Speaker of the House of Representatives since February 2026. He was previously chief representative of Komeito in 2024, secretary general of the same party from 2020 to 2024, and Minister of Land, Infrastructure, Transport and Tourism under Prime Minister Shinzo Abe from 2015 to 2019.

Born in Tokyo and educated as an engineer at the University of Tokyo, he served as an official in the Ministry of Construction before entering politics. He was elected as a member of the House of Representatives in 1993 and served in the House until his defeat in 2024. He resigned as Komeito chief representative after his defeat, having held the position for just over a month.

Ishii returned to the House of Representatives in the 2026 election as a candidate of the Centrist Reform Alliance and was elected Vice Speaker of the House.