Uirapuru (subtitled O passarinho encantado, “The Enchanted Little Bird”) is a symphonic poem or ballet by the Brazilian composer Heitor Villa-Lobos, begun as a revision of an earlier work in 1917 and completed in 1934.

The occasion was a gala in honour of the Brazilian President Getúlio Vargas during a visit to Argentina for the Fifth Pan-American Commercial Conference which started the next day.

It has been suggested that the composer gave the earlier date in order not to be thought under the influence of Igor Stravinsky, whose music he came to know at first hand only during his first European visit in 1923.

[4] On the other hand, a sketch page for the earlier composition almost certainly dating from 1916 includes drafts of material only incorporated later in Uirapuru, in particular the octatonic "handsome indian theme", which suggests that such a scale was indeed already familiar to Villa-Lobos before his earliest contact with the music of Stravinsky.

[5] Uirapuru is scored for an orchestra consisting of: piccolo, 2 flutes, 2 oboes, cor anglais, 2 clarinets, bass clarinet, 2 bassoons, contrabassoon, soprano saxophone, 4 horns, 3 trumpets, 3 trombones, tuba, timpani, percussion (tam-tam, tubular bells, reco-reco, coco, floor-tom, tamborim, cymbals, bass drum, xylophone, celesta, glockenspiel), 2 harps, piano, violinophone, and strings.