Harold Josiah Crosby (February 11, 1886 – January 18, 1920) was a composer and arranger of band and orchestra music best known for his marches.
He played trombone, euphonium (baritone), piano, and organ for several orchestras and theater ensembles.
Crosby's marches rose to prominence in the early 20th century, with several pieces becoming staples of military bands during World War I.
Three volumes of the Heritage of the March record series were dedicated to his work.
This article about a United States composer born in the 19th century is a stub.