British conductor and composer, noted for his performances of Hector Berlioz.

Harty was an organist in Belfast and Dublin before going to London (1900), where he gained a reputation as an accompanist and composer. In addition to giving many recitals with his wife, the soprano Agnes Nicholls (1877–1959), he became known as a conductor in concerts with the London Symphony Orchestra. From 1920 to 1933 he was conductor of the Hallé Orchestra in Manchester. His compositions include a violin concerto, a tone poem, With the Wild Geese, and the Irish Symphony. He was knighted in 1925.