Flavius Moschianus (Greek: Μοσχιανός; fl.
512) was a politician of the Eastern Roman Empire; he was appointed consul for 512.
Moschianus was a son of Sabinianus Magnus, magister militum per Illyricum (479-481), and the brother of Sabinianus, consul in 505.
He married a niece of the emperor Anastasius I; their son Anastasius Paulus Probus Moschianus Probus Magnus was consul in 518.