Shintō Musō-ryū, or Shindō Musō-ryū (神道夢想流?),a most commonly known by its practice of jōdō, is a traditional school (koryū) of the Japanese martial art of jōjutsu, or the art of wielding the short staff (jō). The technical purpose of the art is to learn how to defeat a swordsman in combat using the jō, with an emphasis on proper combative distance, timing and concentration. The system includes teachings of other weapon systems which are contained in Shintō Musō-ryū as auxiliary arts (Fuzoku ryuha). The school is sometimes abbreviated as SMR.
The art was founded by the samurai Musō Gonnosuke Katsuyoshi (夢想 權之助 勝吉, fl. c.1605, dates of birth and death unknown) in the early Edo period (1603–1868) and, according to legend, first put to use in a duel with Miyamoto Musashi (宮本 武蔵, 1584–1645). The original art created by Musō Gonnosuke has evolved and been added upon ever since its inception and up to modern times. The art was successfully brought outside of its original domain in Fukuoka and outside of Japan itself in the 19th and 20th century. The spreading of Shintō Musō-ryū beyond Japan was largely the effort of Takaji Shimizu, 1896–1978), considered the 25thd headmaster. With the assistance of his own students and the cooperation of the kendō community, Shimizu spread Shintō Musō-ryū worldwide.