Koretoshi Maruyama

Japanese martial arts instructor

丸山惟敏

Born

5 October 1936, Tokyo

Citizenship

Japan

Sport

aikido

Occupation

aikidoka

Koretoshi Maruyama (born 5 October 1936) is a Japanese aikido instructor and founder of Aikido Yuishinkai (合氣道唯心会), he was an uchideshi of aikido founder Morihei Ueshiba and also a student of Koichi Tohei.

External links

• Wikipedia
• Wikidata

Facts from Wikidata Q1784384 (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.