502–542) was a politician of the Eastern Roman Empire and relative of the Emperor Anastasius I. Probus was the nephew of Eastern Roman Emperor Anastasius I and a cousin of the brothers Hypatius and Pompeius; he was probably the son of Paulus (consul in 496) and his wife Magna.
He was a Monophysite and a friend of the monk Severus (who later became Patriarch of Antioch), whom Probus introduced to Anastasius when the former went to Constantinople, around 508.
In 526 (when he had been probably appointed to the high office of magister militum, surely already a patricius) Probus was sent by the Emperor Justin I as the ambassador to the Huns; the emperor gave him money to hire Hunnic mercenaries to defend the Iberian region from the Persians, but Probus gave the money, with the consent of Justin, to the missionaries who worked among the Huns.
The rebels needed a candidate to the throne in opposition to Justinian, and Probus believed that, as a nephew of Anastasius, the people might choose him or one of his cousins, and for this reason he secretly withdrew from Constantinople.
The rebels went to his house, near the port of Julian, and having not found him there, burned it; they then acclaimed Hypatius emperor.