Saiko Shihan Goshi Yamaguchi
Yamaguchi Goshi, Saiko Shihan (Grand Master) has been the president of both the JKGA and IKGA since the late Gogen Yamaguchi's passing in 1989. He continually travels around the world to promote the family art, visiting every country that Gojukai Karate-do is practiced. He also teaches regularly at his two dojos in Tokyo, at the JKGA/IKGA Hombu Dojo in Suginami-ku, and at his dojo in Iidabashi-ku. He is active in all aspects of Karate-do, through teaching, coaching, refereeing and administrating for the two organizations of which he is president. Yamaguchi Saiko Shihan has two children. His daughter Yukiko is not involved with practicing Karate, however she assists regularly with the Japan Gojukai's annual competition, as well as in the Hombu Dojo as an administrator. His son Gohei Sensei is an instructor at both the Hombu Dojo and at the Iidabashi Dojo in Japan.

