Iphigénie en Tauride is an opera by Christoph Willibald Gluck in four acts. It was his fifth opera for the French stage. The libretto was written by Nicolas-François Guillard.

With Iphigénie, Gluck took his operatic reform to its logical conclusion. The recitatives are shorter and they are récitatif accompagné (i.e. the strings and perhaps other instruments are playing, not just continuo accompaniment). The normal dance movements that one finds in the French tragédie en musique are almost entirely absent. The drama is ultimately based on the play Iphigenia in Tauris by the ancient Greek dramatist Euripides which deals with stories concerning the family of Agamemnon in the aftermath of the Trojan War.

Iphigénie en Tauride was first performed on 18 May 1779 by the Paris Opéra at the second Salle du Palais-Royal and was a great success. Some think that the head of the Paris Opéra, Devismes, had attempted to stoke up the rivalry between Gluck and Niccolò Piccinni, an Italian composer also resident in the French capital, by asking them both to set an opera on the subject of Iphigenia in Tauris. In the event, Piccinni's Iphigénie en Tauride was not premiered until January 1781 and did not enjoy the popularity that Gluck's work did.