Ichitaro Doi (?? ???, doi ichitaro, November 20, 1887 – February 28, 1973) was a Japanese professional shogi player who achieved the rank of 8-dan (the highest rank at the time), and was the first president of the Japan Shogi Association.
Doi was a student of the Kinjiro Sekine, the thirteenth Lifetime Meijin, along with contemporary colleagues Yoshio Kimura, Yasujiro Kon, Chotaro Hanada, and Toichi Watanabe.