Severus of Antioch was a prominent non-Chalcedonian theologian and Patriarch of Antioch, active from approximately 465 to 538 CE. Educated in rhetoric and law, he later embraced monastic life. He became patriarch in 512 under Emperor Anastasius I but was deposed and exiled to Egypt following the accession of the Chalcedonian emperor Justin I in 518. He continued to lead the Miaphysite community from exile until his death.

Severus was a prolific writer, though much of his work survives only in fragments or Syriac translation. His substantial corpus includes numerous Cathedral Homilies, theological treatises such as Against the Impious Grammarian, letters, and hymns.

He is a central figure for the development of Miaphysite Christology after the Council of Chalcedon. His writings and leadership provided the doctrinal foundation for what became the Oriental Orthodox churches. His works also offer valuable historical insight into the religious conflicts of the sixth-century Eastern Roman Empire.