Flavius Armatus (; † 477 in Konstantinopel) war ein oströmischer Militärbefehlshaber, "magister militum" unter den Kaisern Leo I., Basiliskos und Zenon sowie Konsul. ###>Flavius Armatus (died 477), also known as Harmatius was a Byzantine military commander, "magister militum" under Emperors Leo I, Basiliscus and Zeno, and consul.