Tōon-ryū(東恩流,Tōu'on-ryū?) is a style of OkinawanKarate founded by Juhatsu Kyoda.
Juhatsu Kyoda(許田 重発,Kyoda Juhatsu?, December 5, 1887–August 31, 1968) entered the dojo of Higaonna Kanryō in 1902 and continued studying with him until Kanryō's death in 1915. One month after Kyoda started, Miyagi Chōjun (co-founder of Gōjū-ryū) entered the dojo. In 1908, Kenwa Mabuni (founder of Shitō-ryū) also joined the dojo of Higaonna Kanryō.
The Tōon-ryū kata and training drills consist of: Ten-I-Happo, Tsuki-Uke (Shiho-Uke), Kiso I & II, Sanchin, Sesan, Sanseru, Pechurin, Jion, & Nepai. Apparently Kyoda knew two versions of Seisan: one from Higaonna Kanryō and one from Higaonna Kanryu, but only passed on the Kanyu version. He learned Jion from Kentsū Yabu. By far Higaonna Kanryō had the most profound impact on him as Kyoda devoted well over a decade of his life to learning Kanryō’s karate. He ultimately named his style after him: Tō-on-ryū (literally ‘Higaon[na] style’).
Kyoda's tradition was carried on by Iraha Choko, Kyoda Juko (3rd son), and Kanzaki Shigekazu. The current Sōke of Tōon-ryū today is Kanzaki Shigekazu, and the chief instructor is Ikeda Shigenori.