Jiang Ziya (fl. 11th century BC), also known by , was a Chinese noble who helped kings Wen and Wu of Zhou overthrow the Shang in ancient China. Following their victory at Muye, he continued to serve as Zhou's prime minister. He remained loyal to the regent Duke of Zhou during the Rebellion of the Three Guards; following the Duke's punitive raids against the restive Eastern Barbarians or Dongyi, Jiang was enfeoffed with their territory as the marchland of Qi. He established his seat at Yingqiu (within modern Zibo).