- Iουλιανος was a brother of the Mithraeum of Dura Europos.
- Active c. 169 – 256 in Dura Europos, Syria-Coele (Syria).
- He served in the Legio XVI Flavia Firma Antoniana.
Ioulianos was one of the soldiers of the Legio XVI Flavia Firma Antoniana stationed at Dura Europos in the first quarter of the third century. On the pediment of the entrance door to a naos adjacent to the Dolichenum at Dura Europos in Syria, he engraved an inscription to Zeus Helios Mithras, 'the most high saint who hears the prayers Tourmasgade'.
This inscription by a certain Ioulianos, found at the entrance to the Dolichenum at Dura Europos, bears an inscription to Zeus Helios Mithras et Tourmasgade.