Acholius bishop of Thessalonica (Ambrose, Epist. 15:12), baptized Theodosius, A.D. 380, before his Gothic war, and died in 383. Ambrose (ibid.) wrote an epistle to the Church at Thessalonica in which he compares his life and gifts with those of Elisha. Acholius was present at the Council of Constantinople, A.D. 381.