Kenya Kawaguchi (川口 賢哉 Kawaguchi Ken'ya) (born May 2, 1970, in Hiroshima) is a Japanese shakuhachi musician. He has been living in New York City since 2006. He plays an un-lacquered, un-jointed, bamboo flute to help express his music directly and transcend any separation between performer and instrument in the tradition of Watazumido, and has been inspired by the playing of John Coltrane and Eric Dolphy. When he was a student of the graduate school of Waseda University, He debuted with a work by John Cage at the Museum of Contemporary Art Tokyo. He has participated in the Triennial Art Festival in Niigata, and the Annual Opus Medium Recital at the Tokyo Opera City Hall, and currently performs both solo and with dancers. Kawaguchi is a member of Seiji Nagai Group and an Associate of the Open Music Ensemble.