John Alcock (11 April 1715, London – 23 February 1806) was an English organist and composer. He wrote instrumental music, glees and much church music.
He was a pupil of John Stanley at St. Paul's Cathedral, and he earned a doctorate in music at the University of Oxford in 1766. Much detail of his life is included in his semi-autobiographical novel, The Life Of Miss Fanny Brown published under the pseudonym John Piper in 1771. He also held a position as private organist to the Earl of Donegall.
- ^ Randel, Don Michael, ed. (1996). "Alcock, John". The Harvard biographical dictionary of music. Cambridge, Mass.: Belknap Press of Harvard Univ. Press. p. 12. ISBN 0-674-37299-9.
- ^ Cathedral Organists, John E. West, London, Novello and Company, 1899.