Ushio Amagatsu (天児 牛大 Amagatsu Ushio, born 1949 in Yokosuka, Kanagawa) is a Japanese choreographer known as the leader of the Butoh dance group Sankai Juku, which he founded in 1975. He is the artistic director, choreographer and a dancer of Sankai Juku. He was also a co-founder of the seminal Butoh collective Dairakudakan in 1972. All Sankai Juku works since 1982 were premiered at and co-produced by Théâtre de la Ville, Paris. Sankai Juku has performed at more than 40 countries, 700 cities worldwide. Since 1997, he works as opera director as well.