Ollantay, op. 17

Ollantay: Tres movimientos sinfónicos, Op. 17, is an orchestral triptych by Alberto Ginastera written in 1947. It is one of the last compositions of his first period, objective nationalism (1934–48). It was premiered on October 29, 1949 in Buenos Aires by the Regular Orchestra of the Teatro Colón conducted by Erich Kleiber.

It has been described as a three-movement symphonic poem. Inspired in the Quiché mythological corpus Popol Vuh like his later homonymous cantata, Ollantay depicts the confrontation of the sons of the Earth and the Sun, commanded by Ollantay and Inca respectively, which ends in the defeat of the former after a long siege.

The work consists of three movements, to which Ginastera provided a short programme: