Emilianus of Trevi was a 4th-century bishop originally from the Kingdom of Armenia. Consecrated by Pope Marcellinus in 296, he served as the first bishop of Trevi. During the persecutions led by Diocletian, he refused to offer sacrifices to Roman deities. This defiance led to his martyrdom, as he was executed alongside three companions. His death is traditionally dated to either 302 or 304, occurring at a location known as Bovara.