The Bacchae (also known as The Bacchantes) is an ancient Greek tragedy, written by the Athenian playwright Euripides during his final years in Macedonia, at the court of Archelaus I of Macedon. It premiered posthumously at the Theatre of Dionysus in 405 BC as part of a tetralogy that also included Iphigeneia at Aulis and Alcmaeon in Corinth, and which Euripides’ son or nephew probably directed. It won first prize in the City Dionysia festival competition.

The Bacchantes is considered to be not only Euripides’ greatest tragedy, but one of the greatest ever written, modern or ancient. The Bacchae is distinctive for the fact that the chorus is integrated into the plot, and the god is not a distant presence, but is a character in the play, he is in fact the protagonist.

Euripides (c. 480–406 BC) was one of the three great tragedians of classical Athens, the other two being Aeschylus and Sophocles. Some ancient scholars attributed ninety-five plays to him but according to the Suda it was ninety-two at most. Of these, eighteen or nineteen have survived more or less complete (there has been debate about his authorship of Rhesus, largely on stylistic grounds) and there are also fragments, some substantial, of most of the other plays. More of his plays have survived intact than those of Aeschylus and Sophocles together, partly due to mere chance and partly because his popularity grew as theirs declined—he became, in the Hellenistic Age, a cornerstone of ancient literary education, along with Homer, Demosthenes and Menander.