Giacomo Antonio Domenico Michele Secondo Maria Puccini (Italian: [ˈdʒaːkomo putˈtʃiːni]; 22 December 1858 – 29 November 1924), generally known as Giacomo Puccini, was an Italian composer whose operas are among the most frequently performed in the standard repertoire.

Puccini has been called "the greatest composer of Italian opera after Verdi". While his early work was rooted in traditional late-19th-century romantic Italian opera, he successfully developed his work in the 'realistic' verismo style, of which he became one of the leading exponents.