Peer Gynt, Op. 23 is the incidental music to Henrik Ibsen's 1867 play of the same name, written by the Norwegian composer Edvard Grieg in 1875. It premiered along with the play on 24 February 1876 in Christiania (now Oslo).
Later, in 1888 and 1891, Grieg extracted eight movements to make two four-movement suites: Suite No. 1, Op. 46, and Suite No. 2, Op. 55. Some of these movements have received coverage in popular culture; see Grieg's music in popular culture.