Harvey Bartlett Gaul (b. 12 Apr 1881, Brooklyn; d. 1 December 1945, Pittsburgh, Pennsylvania) was an American composer, organist, choirmaster, lecturer, music critic, and writer from Pittsburgh. He is memorialized by an annual award — the Harvey Gaul Memorial Composition Contest (aka The Harvey Gaul Prize) — bestowed to composers for outstanding work.
He was an organist for 35 years (1910–1945) at Calvary Episcopal Church, Pittsburgh. He is well known as a composer of church music.