Āzar Kayvān was the Zoroastrian high priest of Istakhr and a gnostic philosopher, who was a native of Fars, Iran and later emigrated to Patna in the Mughal Empire during the reign of Emperor Akbar. A member of the Sepāsīān community, he became the founder of a Zoroastrian school of Ishraqiyyun or Illuminationists, which exhibited features of Sufi Muslim influence. This school became known as the Kis-e-Abadi "Abadi sect" or Azarkeivanian.