Welcome to International Karatedo Gojukai Association!

IKGA is the international association formed by the late Grand Master Gogen Yamaguchi to help bring Gojuryu Karatedo to the world. Under his leadership IKGA flourished with thousands of members worldwide, and under the leadership of his son, Grand Master Goshi Yamaguchi, the association continues to grow and thrive.

IKGA Karate can be found in Africa, Asia, Europe, North and South America, and Oceania. Saiko Shihan Goshi Yamaguchi travels regularly to each of these regions to teach the highest level of Gojuryu Karatedo to Instructors and Members. Members from all regions that teach IKGA Karate are welcome to visit Hombu (Headquarters) in Japan.


IKGA News

It is with great sadness that we announce the passing of Shihan Shigeki Yamada, Hanshi 8th Dan on October 8, 2025. Yamada Hanshi was a former Vice-President and current advisor of JKGA, and a lifelong supporter of Gojkai.

We would like to express our heartfelt gratitude for the kindness and support he received during his lifetime, and extend our deepest condolences to Yamada Shihan's family, friends and students.

IKGA/JKGA

IKGA Global Championships Japan, August 7 - 11, 2025

(Updated 10 October 2025)

Full results from the recent IKGA Global Championships in Chiba, Japan have been posted. Links and more information are on the IKGAGC page.

See the official results here.

Special limited offering (for JKGA/IKGA Shihans)

Gogen Haori

Gogen Yamaguchi Kaiso wore a Haori jacket and Hakama pants wherever he went out, both in Japan and abroad, and he liked to wear a white haori made from karate kimono fabric.

In an offer exclusive to IKGA Shihans to commemorate the 75th anniversary of the founding of JKGA and the 60th anniversary of the founding of IKGA, Hombu is now taking orders to purchase custom Haori in the style that Gogen Yamaguchi Kaiso favored.

More information can be found here.

President's Message

Happy New Year!

 

IKGA President, Saiko Shihan Goshi Yamaguchi's New Year message for 2026 has been posted.

See more here.

President's Message

New video posted! - YouTube

 

Three new kata have been developeded by JKGA/IKGA Grandmaster Goshi Yamaguchi, and he is pleased to unveil them on the official IKGA YouTube channel. The new kata, "Sanshu" are being released in stages: Kenshu, Shoshu and Ryoshu. Saiko Shihan has now released Ryoshu to complete the set along with Kenshu and Shoshu. Let's practice together! You can see all three new kata here:

Visit the official channel here: youtube.com