Kusunoki Teruko
(楠光子, b. 3 September 1939) is a retired Nihon Ki-in female professional. Qualified in 1956, 7 dan in 1984 (nee Honda Teruko 本田輝子). Retired on 31 March 2019 aged 79, and thus promoted to 8 dan, level with her much older sister Sugiuchi Kazuko.
She won the the Women's Kakusei in 1979, 1984, and 1985, and the Women's Honinbo in 1983, 1985, 1987, 1988, and 1989.
Kusunoki Teruko is the youngest of the three professional go-playing Honda sisters, all of whom have won the strongest women's tournaments.. Her older sisters are the late Honda Sachiko, 9 years older, and Sugiuchi Kazuko, 12 years older who is still winning official professional Go games aged 96 (as of 2023).