Kazuyoshi Ishii
Japanese full-contact karate master, the founder of Seido kaikan and K-1
石井 和義 · 石井和義 · 이시이 가즈요시
- Born
- 10 June 1953, Uwajima
- Citizenship
- Japan
- Sport
- kickboxing, full contact karate
- Discipline
- K-1
- Occupation
- karateka
Kazuyoshi Ishii (石井 和義, Ishii Kazuyoshi; born June 10, 1953) is a Japanese karateka, promoter, and businessman.. He was born in Uwajima City, Ehime Prefecture. Graduated from Ehime Prefectural Uwajima Higashi High School.
He is known as the founder of Seidokaikan, a karate organization, and the founder of K-1, a martial arts promotion which became a pioneer in mixed martial arts events.
K-1 Founder and advisor/Director of Seimichi Kaikan/ARISF.GAISF. (IOC-recognized international federation of sports organizations, international sports federation) Kickboxing WAKO JAPAN/FIKA/Originally based on the manga "Dorukara".
Teachers
Students
External links
Facts from Wikidata Q2636225 (CC0); quoted introduction from English Wikipedia (CC BY-SA 4.0). Data retrieved 2026-10-22.
Data: Wikidata (CC0 1.0); Wikipedia (English) (CC BY-SA 4.0). Retrieved 2026-10-22.