Alexander of Aphrodisias, pupil of Aristocles of Messene, the most celebrated of the Greek commentators on the writings of Aristotle, and styled, by way of pre-eminence, o exegetes ("the expositor"), was a native of Aphrodisias in Caria.

He came to Athens towards the end of the 2nd century, became head of the Lyceum and lectured on peripatetic philosophy. The object of his work was to free the doctrine from the syncretism of Ammonius and to reproduce the pure doctrine of Aristotle.

Commentaries by Alexander on the following works of Aristotle are still extant:

• the Analytica Priora, i
• the Topica
• the Meteorologica
• the De Sensu
• the Metaphysica, i-v, together with an abridgment of what he wrote on the remaining books of the Metaphysica.