Reginald Heber (21 April 1783 – 3 April 1826) was an English Anglican bishop, a man of letters, and hymn-writer. After 16 years as a country parson, he served as Bishop of Calcutta until his death at the age of 42. The son of a rich landowner and cleric, Heber gained fame at the University of Oxford as a poet. After graduation he made an extended tour of Scandinavia, Russia and Central Europe. Ordained in 1807, he took over his father's old parish, Hodnet, Shropshire. He also wrote hymns and general literature, including a study of the works of the 17th-century cleric Jeremy Taylor.

He was consecrated Bishop of Calcutta in October 1823. He travelled widely and worked to improve the spiritual and general living conditions of his flock. Arduous duties, a hostile climate and poor health led to his collapse and death after less than three years in India. Memorials were erected there and in St Paul's Cathedral, London. A collection of his hymns appeared soon after his death. "Holy, Holy, Holy! Lord God Almighty" remains popular for Trinity Sunday, while "Brightest and Best" is frequently sung during Epiphany.