(Παρμενᾶς, probably a contraction for παρμενίδης, constant), the sixth named of the seven first deacons (q.v.) of the Church formed at Jerusalem (Acts 6:5). A.D. 29. Nothing more is known of him.; but the Roman martyrologies allege that he suffered martyrdom at Philippi under Trajan (Baron. Ann. 2:55). Hippolytus asserts that he was at one time bishop of Soli. In the Calendar of the Byzantine Church he and Prochorus are commemorated on July 28th.