Juan Antonio Orrego Salas (January 18, 1919 – November 24, 2019) was a Chilean-American composer of contemporary classical music and musicologist.
Orrego Salas was born in Santiago, Chile.
He began his studies in composition in his native country with Pedro Humberto Allende and Domingo Santa Cruz.
While in the United States (1944–46), he additionally studied composition with Randall Thompson and musicology with Paul Henry Lang on a Guggenheim Fellowship.
A second Guggenheim brought him back to the United States in the early 1950s.
Throughout that decade, works of his were performed by the Juilliard Quartet, the Louisville Orchestra, and the National Symphony Orchestra.
In 1961, he permanently relocated to the United States to work at Indiana University, where he co-founded the Latin American Music Center.
In 1992 he was the inaugural winner of Chile's National Prize for Musical Arts.He was one of the foremost Chilean composers and one of the most widely known of the musicians from that country around the world.