Kazuo Imai (今井 和雄, Imai Kazuo, born September 24, 1955) is a Tokyo-based guitarist who plays in a rigorous and original free improvisation idiom. His music joins the rigour and texture of contemporary classical with the passion of free jazz. He has played with many Western and Japanese improvisers, including Lee Konitz, Barre Phillips, Arthur Doyle, Han Bennink, Irene Schweizer, Shuichi Chino, Tetsu Saitoh and Kazue Sawai. In addition to playing solo and in collaborations, Imai is also a member of the important collective improvisation group Marginal Consort. As well as guitar, Imai also plays viola da gamba.