Yachiyo

Yachiyo may refer to:
 * Yachiyo, Chiba, a city in Chiba Prefecture, Japan
 * Yachiyo, Hyōgo, a former town in Hyōgo Prefecture, Japan
 * Yachiyo, Ibaraki, a town in Ibaraki Prefecture, Japan
 * A fictional teenage Japanese-Hawaiian girl, the title character in Philip Kan Gotanda's play The Ballad of Yachiyo