Auxentius of Milan

Auxentius of Milan (fl. c. 355 – 374), was an Arian theologian and bishop of Milan. Because of his Arian faith, Auxentius is considered by the Catholic Church as an intruder and he is not included in the Catholic lists of the bishops of Milan such as that engraved in the Cathedral of Milan.

Auxentius came to be regarded as the great opponent of the Nicene creed in the West. His theological doctrines were attacked by Hilary of Poitiers, whose Liber contra Auxentium remains the chief source of information about him.