Aristonicus (Latin; Greek Ἀριστόνικος Aristonikos) of Alexandria was a distinguished Greek grammarian who lived during the reigns of Augustus and Tiberius, contemporary with Strabo. He taught at Rome, and wrote commentaries and grammatical treatises.
He is mentioned as the author of several works, most of which were related to the Homeric poems.
These and some other works are all now lost, with the exception of fragments preserved in the passages above referred to. By far the most important fragments of his work are preserved in the scholia of the Venetus A manuscript of the Iliad.