The Dream of Gerontius, Op. 38, is a work for voices and orchestra in two parts composed by Sir Edward Elgar in 1900, to text from the poem by John Henry Newman. It relates the journey of a pious man's soul from his deathbed to his judgment before God and settling into Purgatory. Elgar disapproved of the use of the term "oratorio" for the work, though his wishes are not always followed. The piece is widely regarded as Elgar's finest choral work, and some consider it his masterpiece.
The work was composed for the Birmingham Music Festival of 1900; the first performance took place on 3 October 1900, in Birmingham Town Hall. It was badly performed at the premiere, but later performances in Germany revealed its stature. In the first decade after its premiere, the Roman Catholic dogma in Newman's poem caused difficulties in getting the work performed in Anglican cathedrals, and a revised text was used for performances at the Three Choirs Festival until 1910.