Reverend Doctor John Troutbeck (November 12, 1832, Blencowe–October 11, 1899, London) was an English clergyman, translator and musicologist, a Canon Precentor of Westminster Abbey and Chaplain-in-Ordinary to Queen Victoria, whose renown rests on his translation into English of various continental choral texts including the major works of J.S. Bach. He additionally translated oratorios by Beethoven, Brahms, Dvořák, Gounod, Liszt, Saint-Saëns, Schumann and Weber, as well as secular operas by Mozart, Gluck and Wagner. He also compiled psalters and hymnals and worked on the Revised Version translation of the Bible.