Photo: 内閣官房内閣広報室 / CC BY 4.0 (source: Wikimedia Commons)
My Take
Seiji Mataichi isn't a name that turns up in celebrity gossip, but I find his story quietly compelling — a Toyama-born kid who spent decades as the steady, stubborn backbone of Japan's Social Democratic Party at a time when left-wing politics in Japan was not exactly a career move for the ambitious. He served in the House of Councillors from 2001 and became party leader in 2018, taking the helm of a party that had been shrinking for years, which takes either genuine conviction or a remarkable tolerance for uphill battles. Probably both. He passed away in September 2023 at 79, and whatever you think of his politics, there's something respectable about a person who sticks to their lane, keeps showing up, and doesn't defect when the wind shifts. Not flashy, but real.
Overview
Seiji Mataichi (1944–2023) was a Japanese politician from Toyama City, Toyama Prefecture, who served as a member of the National Diet. He attended Toyama Prefectural Toyama High School. He passed away on September 18, 2023.
1. Profile
- Name (English)
- Seiji Mataichi
- Name (Japanese)
- 又市征治
- Reading
- またいち せいじ
- Born
- July 18, 1944 – September 18, 2023
- Zodiac / Chinese zodiac
- Cancer / Monkey (申)
- Origin
- Toyama City, Toyama Prefecture, Japan
- Blood type
- Private
- Height
- Private
- Agency
- Private
- Active years
- Unknown
- Occupation
- Politician / Member of the National Diet
2. Background
- Elementary school
- Private
- Junior high
- Private
- High school
- Toyama Prefectural Toyama High School
- University
- Private
- Debut
- Unknown
3. Relationships
- Spouse
- Private
- Children
- Private
- Parents
- Private
- Siblings
- Private
4. Personality
Motto
Private
6. Links
Politician — see all → · More people from Japan →
7. About this entry
Tags
- Last updated
- 2026-06-02
Facts are limited to publicly available information up to 2024; non-public items are marked "Private / Unknown". English text is machine-assisted (facts translated by Sonnet, "My Take" written by Opus 4.8). The Japanese page is the source of record.