Roberto Sierra

Roberto Sierra (1953) is a Puerto Rican composer of contemporary classical music. 

Sierra was born in Vega Baja, Puerto Rico. He studied composition in Europe, notably with György Ligeti in Hamburg (1979–1982), Germany. After his two-act opera El mensajero de plata, to a libretto by Myrna Casas, had premiered at the Interamerican Festival in San Juan on 9 October 1986, Sierra came to prominence in 1987 when his first major orchestral composition, Júbilo, was performed at Carnegie Hall by the Milwaukee Symphony Orchestra. (Júbilo had been premiered in Puerto Rico in 1985 by the Puerto Rico Symphony Orchestra conducted by Zdeněk Mácal; it was also performed in 1986 by the same forces conducted by Akira Endo.) For more than three decades his works have been part of the repertoire of many of the leading orchestras, ensembles and festivals in the USA and Europe. His Fandangos was performed at the opening night of the 2002 Proms, performed by the BBC Symphony Orchestra and televised throughout Europe.

Sierra is a retired professor at Cornell University in Ithaca, New York, where he taught composition.