Asterius (fl. 419–422) was a Roman general who obtained the title of comes Hispaniarum in which capacity he participated in an important military expedition against the Vandals who had established themselves in the north of Gallaecia. He was also able to defeat the usurper Maximus of Hispania, who had taken refuge with the barbarian tribes there. Due to his military prowess and his considerable amount of battlefield victories, he was given the title of Patrician in 422.