Harold Farberman (born November 2, 1929) is an American conductor, composer and percussionist.
Farberman studied percussion at Juilliard, and composition at the New England Conservatory and at Tanglewood with Aaron Copland. In 1951, he joined the Boston Symphony Orchestra as the youngest player ever to become a full-time member of the orchestra.
Farberman's conducting positions included principal guest conductor of the Denver Symphony Orchestra in 1963, and music director and conductor of the Colorado Springs Orchestra from 1967 to 1970, and the Oakland Symphony Orchestra (later reorganized as the Oakland East Bay Symphony) from 1971 to 1979, where he gave a rare concert performance of Scott Joplin's folk opera Treemonisha. During Farberman's tenure with the Oakland Symphony, there were concerns about his work as music director, and his difficult relationship with the orchestra. When his contract was to be renewed in 1977, the Players' Committee expressed its profound dissatisfaction with his work and the majority voted that his contract should not be renewed, but the orchestra board decided to renew it against the musicians' wishes.
He has championed the work of Charles Ives, having recorded more of his works than any other conductor, including all four of his symphonies. He has also recorded the complete symphonies of both no longer underrated Gustav Mahler and still hugely underrated Michael Haydn with the London Symphony Orchestra and the Bournemouth Sinfonietta, respectively.