Domenico Gaetano Maria Donizetti (Italian: [doˈmeːniko ɡaeˈtaːno maˈria donidˈdzetti]; born 29 November 1797 – died 8 April 1848) was an Italian composer from Bergamo in Lombardy. Along with Gioachino Rossini and Vincenzo Bellini, Donizetti was a leading composer of the bel canto opera style during the first fifty years of the Nineteenth Century.

Although Donizetti did not come from a musical background, at an early age he was taken under the wing of composer Simon Mayr who had enrolled him by means of a full scholarship in a school which he had set up. There he received detailed training in the arts of fugue and counterpoint. Mayr was also instrumental in obtaining a place for the young man at the Bologna Academy, where, at the age of 19, he wrote his first one-act opera, the comedy Il Pigmalione, although it does not appear to have been performed during his lifetime.