Terutomo Yamazaki (山崎 照朝, Yamazaki Terutomo, born July 31, 1947) is a Japanese karateka from the Kyokushin Kaikan (極真会館) and professional lightweight kickboxer. He is the founder of Gyakushin-Kai (逆真会館) and a Director of Karate in Japan. He presides over the International Budo Karate Organization Gyakushin-Kai from the headquarters of the organization (honbu) in Ōmiya-ku, Saitama, Japan. His title as head of the Gyakushin-Kai organization is “Kancho” (Grandmaster - 7th Dan).