Qi Jingyi (traditional Chinese: 祁靜一; simplified Chinese: 祁静一) (1656–1719), also known as Hilal al-Din, was a Chinese Sufi master, instrumental in the spread of the Qadiriyyah school among Chinese Muslims. He was known among his followers as Qi Daozu (祁道祖), i.e. Grand Master Qi.[1]