Eubulus, (Euboulos), an Athenian, the son of Euphranor, of the Cettian demus, was a very distinguished comic poet of the middle comedy, flourished, according to Suidas (s. v.), in the 101st Olympiad, 376/5 BC. If this date be correct (and it is confirmed by the statement that Philip, the son of Aristophanes, was one of his rivals), Eubulus must have exhibited comedies for a long series of years; for he ridiculed Callimedon, the contemporary of Demosthenes. (Athen. viii. p. 340, d.) It is clear, therefore, that Suidas is wrong in placing Eubulus on the confines of the Old and the Middle Comedy. He is expressly assigned by the author of the Etymologicon Magnum (p. 451. 30) and by Ammonius (s. v. *e)/ndon) to the Middle Comedy, the duration of which begins very little before him, and extends to a period very little, if at all, after him.

His plays were chiefly on mythological subjects. Several of them contained parodies of passages from the tragic poets, and especially from Euripides. There are a few instances of his attacking eminent individuals by name, as Philocrates, Cydias, Callimedon, Dionysius the tyrant of Syracuse, and Callistratus. He sometimes ridicules classes of persons, as the Thebans in his Antiope.

His language is simple, elegant, and generally pure, containing, few words which are not found in writers of the best period. Like Antiphanes, he was extensively pillaged by later poets, as, for example, by Alexis, Ophelion, and Ephippus.

Suidas gives the number of the plays of Eubulus at 104, of which there are extant more than 50 titles, namely, Ankylion, Anchises, Amaltheia, Anasozomenoi, Antiope, Astytoi, Ayge, Bellerophontes, Ganymedes, Glaukos , Daidalos, Damalias is a corrupt title (Suid. s. v. Askoliazein), for which Meineke would read Damasias, Deukalion, Dionusios, in which he appears to have ridiculed the confusion which prevailed in all the arrangements of the palace of Dionysius (Schol. ad Aristoph. Thesm. 136), Dionysos, or, according to the fuller title (Athen. xi. p. 460, e.), Semele e Dionusos, Dolon, Eirene, Europe, Echo, Ixion, Ion, Kalathephoroi, Kampylion (doubtful), Katakollomenus (doubtful), Kerkopes, Klepsydra, Korydalos, Kybeutai, Lakones i Leda, Medeia, Mylothris, Mysoi, Nannion, Nausikaa, Neottis, Xouthos, Odysseus, e Parnoptai, Oidipous, Oinomaos e Pelops, Olbia, Orthanes, Pamphilos, Pannychis, Parmeniskos, Plangon, Pornoboskos, Prokris, Prosousia e Kyknos, Stephanopolides, Sphingokarion, Titthai, Titanes, Phoinix, Charites, Chrysilla, Psaltria. (Meineke, Frag. Com. Graec. vol. i. pp. 355-367, vol. iii. pp. 203-272; Clinton, Fast. Hell. sub ann. B. C. 375; Fabric. Bibl. Graec. vol. iv. pp. 442-444.)