(Πυθάγγελος), an Athenian tragic poet at the close of the fifth century B. C., who is only known by one passage in Aristophanes (Aristoph. Frogs 87), which is, however, qnite enough to show the sort of estimation in which he was held. Aristophanes places him at the very foot of the anti-climax of tragedians who were still living, and the question of Hercules, whether he is likely to supply the void left by the death of Euripides, does not even obtain an answer, except by a jest of Xanthias.