Kazuo Yagi (八木 一夫, Yagi Kazuo, 1918–1979) was a Japanese potter and ceramic artist best known for spearheading the introduction of nonfunctional ceramic vessels to the Japanese pottery world. With an innovative ceramicist as his father, Yagi was sent to art school to study sculpture, instead of pottery. After graduating in 1937, he continued to train in the progressive circles, such as the National Ceramic Research Institute and the Japan Ceramic Sculpture Association. Following a short period of military service in 1939 and through the early postwar years, he was involved in a series of collectives that sought to transcend the traditional aesthetic values in not just ceramics but also in a range of visual media.