Bacchus is an opera in four acts by Jules Massenet to a French libretto by Catulle Mendès after Greek mythology.

The story is based on the mythology surrounding Bacchus and Ariadne (Ariane).

The Gods, among them the demi-god Bacchus, appear in human form in ancient India to attempt to persuade the people away from the pervading Buddhist influence.

The ballet music has been recorded and issued appropriately by Naxos (company).

The story of this opera is also related to that of Ariadne auf Naxos from Richard Strauss.