Shemon Bar Sabbae was a 4th-century bishop of Seleucia-Ctesiphon and the leader of the Church of the East within the Sasanian Empire. Born to a fuller, he served as a coadjutor bishop starting in 316 before becoming the primary head of his church. During the reign of Shapur II, he faced intense persecution for his faith. He was eventually executed for refusing to renounce Christianity in favor of Zoroastrianism, a decision that led to the deaths of many of his followers.