Armida is an opera by Antonín Dvořák in four acts, set to a libretto by Jaroslav Vrchlický that was originally based on Torquato Tasso's epic La Gerusalemme liberata.

He advises sending the king's daughter Armida, who has rejected Ismen's marriage proposal, to sow dissention in the enemy camp.

Armida arrives in the crusaders' camp and meets Rinald, who brings her into the council where she tells them that an uncle has blinded the king, usurped the throne, and chased her into the desert.

Bohumir, leader of the Franks, prays for guidance and decides they should support Armida, but he will arrange for lots to be drawn to select the expedition's commander.

They are caught leaving the Frankish camp by the hermit Peter, but the lovers are aided in their escape by Ismen, who drives a chariot pulled by dragons.