Seigo Yamaguchi (山口清吾, 1924–1996) was one of the most influential Aikido masters of the postwar generation. Born in Fukuoka, Japan, he began studying Aikido in 1950 at the Aikikai Hombu Dojo under Morihei Ueshiba, the founder of Aikido. Known for his elegant, flowing movements and deep spiritual approach, Yamaguchi Shihan became a symbol of Aikido’s softer, more intuitive expression. He traveled extensively, teaching across Europe and inspiring countless instructors, particularly in France and G