Patriarch of the Church of the East from 415 to 420
d. 420
18th Catholicos of the East (Seleucia-Ctesiphon) · c. 415–c. 420
Yahballaha I was a high official of the Church of the East in Sasanian Persia from 415 to 420. He is included in the traditional list of Church patriarchs. During his tenure he convened the second council of Seleucia-Ctesiphon to address conflicts with the Christian church in the Roman Empire.