Shigeyo Nakachi [Japanese: 中地シゲヨ] (née Hiraishi) was a Japanese supercentenarian who, at the time of her death, was the second-oldest living person in Japan (behind Kane Tanaka) and the fifth-oldest validated person in the world (behind Kane Tanaka, Lucile Randon, Francisca Celsa dos Santos, and Jeanne Bot) whose age was validated by the Gerontology Research Group (GRG). Her great-granddaughter, Yumi (優美) Yamamoto, is the President of LongeviQuest Japan.