Toshirō Daigo (醍醐敏郎 Daigo Toshirō?, born 2 January 1926) is a Japanese judoka. He is Chief Instructor at the Kodokan and former manager of the Japanese national team. He is one of only three living Kodokan 10th dan (and one of only 15 to have attained this rank), having been promoted at the New Year Kagami biraki Ceremony, January 8 2006 along with Ichiro Abe and Yoshimi Osawa. Daigo was born in 1926 and educated at Tokyo University of Education. He was All-Japan Judo Champion in 1951 and 1954. He is author of Kodokan Judo: Throwing Techniques, a definitive text on Judo throws.