Natsuo Yamaguchi


Natsuo Yamaguchi (山口 那津男, Yamaguchi Natsuo, born 12 July 1952) is a Japanese politician of the Komeito party and a member of the House of Councillors in the National Diet of Japan.

Natsuo Yamaguchi
山口 那津男
Natsuo Yamaguchi 20220518.jpg
President of Komeito
Assumed office
8 September 2009
Preceded byAkihiro Ota
Member of the House of Councillors
Assumed office
29 July 2001
Member of the House of Representatives
In office
18 February 1990 – 20 October 1996
ConstituencyTokyo 10th district
Personal details
Born (1952-07-12) 12 July 1952 (age 70)
Nakaminato, Ibaraki, Japan
Political partyKomeito
Other political
NFP (1994–1998, dissolution)
Residence(s)Katsushika, Tokyo
Alma materUniversity of Tokyo

Early lifeEdit

A native of Nakaminato (now Hitachinaka), Ibaraki and he was raised in Hitachi until his graduation from public senior high school. His mother was a teacher of the elementary school. After graduating from the University of Tokyo with a B.L. degree in 1978, he became a lawyer in 1982.

Political careerEdit

He was elected to the House of Representatives for the first time in 1990. After losing his seat in 1996, he ran unsuccessfully for the House of Representatives in 2000. In 2001 he was elected to the House of Councillors for the first time. He became the party's leader on 8 September 2009 after the party suffered a major defeat In the 2009 Japanese general election. New Komeito lost ten seats, including that of party leader Akihiro Ota and general secretary Kazuo Kitagawa. On 8 September 2009, Yamaguchi replaced Ota as president of New Komeito.[1]

Yamaguchi's term as party leader expired in September 2012, and he was re-appointed unopposed for another two years on 22 September 2012. No vote was required, as he was the only candidate.[2] He has continually been reelected since then.

Yamaguchi has come out in support of the Selective Surname System for married couples,[3] as well as voting rights for permanent foreign residents.[4]


  • Known for his mild-mannered personality. Compared to the former Komeito lawmakers such as his predecessor, Ota, he has a softer appearance and is considered to be a major factor in his appointment as a representative. As a politician, it is not always an advantage, and because of its good personality, it is said that there are no enemies but no allies around Nagatacho.[5]
  • The nickname among the supporters and on Nico Nico Live is "Natchan."[6] In 2001, when he ran for the House of Councilors election for the first time in the 19th House of Councilors election, he was given a metal badge imitating Natsumi-kan by his supporters .Summer oranges badge 2013 of the 23rd member of the House of Councilors ordinary election is but mounted.


  1. ^ The Japan Times Ailing New Komeito taps policy chief as new boss. Published 8 September 2009. Retrieved on 8 August 2012.
  2. ^ The Daily Yomiuri Yamaguchi gets nod for 3rd term as Komeito's chief representative. Published 23 September 2012. Retrieved on 26 September 2012.
  3. ^ "公明・山口氏「選択的夫婦別姓に私は肯定的だ」". 産経ニュース. 産経新聞社. 24 February 2015. Retrieved 29 May 2017.
  4. ^ Osaki, Tomohiro (16 October 2017). "Let permanent foreign residents participate in local elections: Komeito chief Yamaguchi". The Japan Times. Retrieved 16 May 2021.
  5. ^ [ 安倍政権のブレーキ役になる 山口公明党代表の自信と不安] - Weekly Bunshun(07/03/2021)
  6. ^ (党首がゆく 2013参院選)公明党・山口那津男代表 「ブレーキ役」問われる夏 - Asahi Shimbun(07/03/2021)
  • 政治家情報 〜山口 那津男〜. ザ・選挙 (in Japanese). JANJAN. Archived from the original on 1 December 2007. Retrieved 20 November 2007.

External linksEdit

  • Official website in Japanese.
House of Councillors
Preceded by Councillor for Tokyo's At-large district
Served alongside: Sanzō Hosaka, Kan Suzuki, Yasuo Ogata, Masako Ōkawara, Tamayo Marukawa
House of Representatives of Japan
Preceded by
Yoshikatsu Takeiri
Hyōsuke Kujiraoka
Yoshinobu Shimamura
Rikyū Shibusawa
Sukehiro Satō
Representative for Tokyo's 10th district (multi-member)
Served alongside: Rikyū Shibusawa, Yoshinobu Shimamura, Hyōsuke Kujiraoka, Sukehiro Satō, Ichirō Kamoshita, Rikukai Sasaki
District eliminated
Party political offices
Preceded by President of Komeito