Risuke Ōtake (大竹利典, Otake Risuke) (10 March 1926 – 7 June 2021) full name Ōtake Risuke Minamoto no Takeyuki (大竹利典源健之, Ōtake Risuke Minamoto no Takeyuki), was a Japanese martial artist. He was a long time shihan (Teaching Master) of Tenshin Shōden Katori Shintō-ryū bujutsu, which he learned as a disciple of the previous teaching master Hayashi Yazaemon (1892-1964) from the time he entered the school in 1942 at the age of 16. In 1967, when Otake-sensei was 42 years old, he received gokui kaiden, the highest level of attainment in the tradition, and at the same time became the school's teaching master. He lived and taught in rural location near Narita city, in Chiba Prefecture of Japan. The teachings of Tenshin Shōden Katori Shintō-ryū were designated an Intangible Cultural Asset of Chiba Pre