Ammonius Hermiae (Greek: Ἀμμώνιος ὁ Ἑρμείου; c. 440-c. 520) was a Greek philosopher, and the son of the Neoplatonist philosophers Hermias and Aedesia. He was a pupil of Proclus in Athens, and taught at Alexandria for most of his life, writing commentaries on Plato, Aristotle, and other philosophers.