Rabbula was a 5th-century bishop who led the see of Edessa from approximately 411 until his death in 435. Serving within the Byzantine Empire, he became a significant figure due to his theological stance against the doctrines held by Nestorius and Theodore of Mopsuestia. Although his successor, Ibas, later changed the theological direction of the Edessan school, Rabbula remains a notable figure in the history of the early Syriac church.