Alberto Evaristo Ginastera (Spanish pronunciation April 11, 1916 – June 25, 1983) was an Argentine composer of classical music. He is considered one of the most important 20th-century classical composers of the Americas. Ginastera was born in Buenos Aires to a Catalan father and an Italian mother. During the last few years of his life, he preferred to pronounce his surname in its Catalan pronunciation, with a soft 'G' as in 'George' rather than a Spanish 'J' sound. In fact this would be the local Argentine pronunciation of his name if it were spelled Yinastera or Llinastera.
Ginastera studied at the conservatory in Buenos Aires, graduating in 1938. As a young professor, he taught at the Liceo Militar General San Martín. After a visit to the United States in 1945–47, where he studied with Aaron Copland at Tanglewood, he returned to Buenos Aires and co-founded the League of Composers. He held a number of teaching posts. Among his notable students were Ástor Piazzolla (who studied with him in 1941), Alcides Lanza, Waldo de los Ríos, Jacqueline Nova and Rafael Aponte-Ledée. See: List of music students by teacher: G to J#Alberto Ginastera.
Ginastera moved back to the United States in 1968 and then in 1970 to Europe. He died in Geneva, Switzerland, at the age of 67 and was buried in the Cimetière des Rois there.