Jiayi

Jiayi may refer to:


 * Chinese people:
 * Jia Yi (賈誼; 201–169 BCE), a Chinese poet


 * as Chiayi
 * Chiayi City (嘉義市), provincial city in southern Taiwan, completely surrounded by Chiayi County
 * Chiayi County (嘉義縣), county in southern Taiwan, completely surrounds but does not include Chiayi City