Isshin

Isshin (いっしん) is a Japanese word which may refer to:

Martial arts

 * Isshin-ryū, a modern style of karate
 * Isshin-ryu kusarigamajutsu, Japanese martial art using the chain and scythe weapon called kusarigama

Individuals

 * Isshin Chiba (born 1968), a voice actor who currently works for Arts Vision
 * Isshin Kurosaki, a fictional character in the popular anime and manga series Bleach created by Tite Kubo