Chaeremon of Alexandria (/ - /,; Greek: Χαιρήμων ὁ Ἀλεξανδρεύς, gen.: Ancient Greek: Χαιρήμονος; fl. 1st century AD) was a Stoic philosopher and historian. His father – about whom nothing is known – was called Leonidas, and he was probably born no later than 10 AD. He may have been the grandson of the Chaeremon who accompanied the Roman prefect Aelius Gallus on his tour of Egypt in 26 AD. He was probably one of the ambassadors to Claudius from Alexandria in 40 AD. According to the Suda, he was the head of the Alexandrian school of grammarians, and he may also have been head of the Museion. He also taught Nero, probably before 49 AD when Seneca the Younger became Nero's tutor.
All of Chaeremon's works are lost, though three titles are preserved: the History of Egypt, Hieroglyphika, and On Comets, along with a number of fragments quoted by later authors.[a] Aside from his three works whose titles are known, a fragment of a grammatical treatise by Chaeramon also survives. Ancient sources describe him as a Stoic, and his surviving writings on Egyptian mythology are from a "typically Stoic" perspective.