Tetsujyo Deguchi (1950-) is a Japanese Zen master and disciple of Ban Tetsugyu Soin.

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Deguchi contributed to the spread of Zen in Italy and contributed to the foundation of the Zen monastery Ensoji il Cerchio. He began practicing zazen as a teenager and took monastic vows when he was 30 years old. He holds a law degree from Chuo University, Tokyo ^{[citation needed]} and is the current abbot of Tosho-ji, Tokyo.