William Duncombe (ca. 1736-1738 – 30 November 1818, or 1819)[1] was an English composer. He was organist in Kensington.[2]
He is mainly known by a few small piano pieces (especially a Sonatina in C Major and the Fanfare or Fanfare Minuet) that are still reprinted in pedagogical collections.[3] They are probably excerpts of the Progressive lessons for the harpsichord and piano forte, published in 1778 (or 1785).