Nabucco (short for Nabucodonosor, English Nebuchadnezzar) is an opera in four acts by Giuseppe Verdi to an Italian libretto by Temistocle Solera, based on the Biblical story and the 1836 play by Auguste Anicet-Bourgeois and Francis Cornue. It is Verdi’s third opera and the one which is considered to have permanently established his reputation as a composer.

Nabucco follows the plight of the Jews as they are assaulted, conquered, and subsequently exiled from their homeland by the Babylonian King Nabucco (in English, Nebuchadnezzar). The historical events are used as background for a romantic and political plot.

Its first performance took place on 9 March 1842 at the Teatro alla Scala, Milan under the original name of Nabucodonosor. The definitive name of Nabucco for the opera (and its protagonist) was first used at a performance at the San Giacomo Theatre of Corfu in September, 1844. Nonetheless, a more plausible alternative for the establishment of this abbreviated form claims that it was the result of a revival of the opera in Teatro Giglio of Lucca.