Primasius (died around 560) was bishop of Hadrumetum and primate of Byzacena, in Africa. One of the participants in the Three Chapters Controversy, his commentary on the Book of Revelation is of interest to modern scholars for its use of the lost commentary of Ticonius on the same book of the New Testament. According to M.L.W. Laistner, his disciples included the African theologian Junillus.
Of his early life nothing seems to be known, but in 551, after he had become a bishop, he was called with other bishops to Constantinople and took part in the Three Chapters Controversy. He shared the fortunes of Pope Vigilius and helped to condemn Theodorus Ascidas, bishop of Caesarea, the chief promoter of the controversy, and fled with Vigilius to Chalcedon. He declined to attend the Fifth Ecumenical Council at Constantinople in the absence of the pope, and was the sole African to sign the papal constitutum to Emperor Justinian.
While at Constantinople, Primasius studied the exegesis of the Greeks, and his fame is chiefly due to his commentary on Revelation. This work, divided into five books, is of importance both as a witness of the pre-Cyprian Latin text of the Book of Revelation used by the North African church, and as aiding in the reconstruction of the most influential Latin commentary on Revelation, the exegetical work of the Donatist Ticonius. The text and exegesis of Revelation 20:1-21:6 are taken without attribution from Augustine of Hippo's De civitate Dei, 20.7-17.
The work of the Ticonius was considered by Primasius a piece of treasure adrift and belonging of right to the Church, needing only to be revised and expurgated. Ticonius had developed the theory introduced by Victorinus, to examine the different words and imagery used in different passages to convey the same message. Primasius followed this exegetical method very closely, but differed from Ticonius on the greater message of the text. Where Ticonius believed Revelation should be read in terms of the struggle of the Donatists with false brethren and gentiles, Primasius held the conflict properly lay between the Church and the world.