Parmenianus a Donatist prelate, flourished in the second half of the 4th century. Upon the decease of Donatus the Great in A.D. 360 Parmenianus was chosen his successor as and bishop of Carthage. He was, however, soon driven from this episcopal seat, and only reinstated under Julian the Apostate. He was at the head of the Donatist party until the close of the 4th century. Two of his writings are lost, but they are noteworthy, as one of them was replied to by Optatus of Milevi in his De Schismate Donatistarnum adv. Parmen., and the other occasioned a reply from St. Augustine (Contra Epistolamn Parneniani, lib. iii). The strict adherents of Parmenianus are called Parmenianists. SEE DONATISTS.