Umberto Menotti Maria Giordano (28 August 1867 – 12 November 1948) was an Italian composer, mainly of operas.

He was born in Foggia in Puglia, southern Italy, and studied under Paolo Serrao at the Conservatoire of Naples. His first opera Marina, was written for the competition staged by the music publishers Casa Sonzogno for the best one-act opera, remembered today because it marked the beginning of Italian verismo; the winner was Mascagni's Cavalleria rusticana. Giordano, the youngest candidate, placed sixth among seventy-three with Marina, which generated enough interest for Sonzogno to commission an opera to be staged in the 1891–92 season.