5th-century bishop of Seleucia-Ctesiphon
b. 4th century · d. 415
17th Catholicos of the East (Seleucia-Ctesiphon) · c. 410–c. 414
Mar Ahha or Ahai was bishop of Seleucia-Ctesiphon, grand metropolitan and primate of the Church of the East from 410 to 414. He is included in the traditional list of patriarchs of the Church of the East.