Julian of Eclanum (Latin: Iulianus Aeclanensis, Italian: Giuliano di Eclano) (c. 386 – c. 455) was bishop of Eclanum, near today's Benevento (Italy). He was a distinguished leader of the Pelagians of 5th century.
Julian was born in Apulia. His father was an Italian bishop named Memor or Memorius and his mother a noblewoman named Juliana. Augustine of Hippo was intimate with the family, and wrote of them in terms of great affection and respect. Around 404 Julian became a "lector" in the church over which his father presided, and while holding that office married a layperson named Ia.
Paulinus, afterwards bishop of Nola, composed an elaborate Epithalamium, which represents him as on terms of great intimacy with the family. By c. 410 Julian had become a deacon, but whether Ia was then living does not appear. He was consecrated to the episcopate by Innocent I c. 417, but the name of his see is variously given.Marius Mercator, who was his contemporary, distinctly speaks of him as "Episcopus Eclanensis". Innocent I died on 12 March 417. Up to that date Julian had maintained a high reputation for ability, learning, and orthodoxy, and Mercator concludes that he must have sympathized with Innocent's condemnation of the Pelagians. Yet there is reason to believe that even Innocent had ground for at least suspecting his connection with Pelagianism.
When the cases of Pelagius and Coelestius were reopened by Zosimus, shortly after the death of Innocent, Julian seems to have expressed himself strongly in their favour in the hearing of Mercator; and when Zosimus issued his Epistola Tractoria 577 against the Pelagians (417 CE) and sent it to the bishops of the East and West for subscription, Julian was among those who refused. He was accordingly deposed, and afterwards exiled under the edicts issued by the emperor Honorius in March 418. Julian now addressed two letters to Zosimus, one of which was very generally circulated throughout Italy before it reached the pontiff. Of this Mercator has preserved some fragments. Of the other we have no remains.