John Capon, alias John Salcot (died 1557) was a Benedictine monk who became bishop of Bangor, then bishop of Salisbury under Henry VIII. He is often referred to as John Salcot alias Capon (variously spelt).
He graduated B.A. from the University of Cambridge, in 1488. He became prior of St John's Abbey, Colchester, and then abbot of St Benet's Hulme, in Norfolk. He was a vocal supporter of Henry's divorce from Catherine of Aragon.
He was abbot of Hyde Abbey from 1530, and bishop of Bangor from 1533 (without papal approval). It is believed that he never took up residence at Bangor, and he admitted that he found it a problem that he did not speak Welsh. He was translated to become bishop of Salisbury in 1539.
Under Mary of England he was one of the commissioners involved in the trials of Protestants and condemned John Bradford, Laurence Saunders and Rowland Taylor to death.
During John Capon's period as bishop of Salisbury the town and country witnessed some of its bloodiest years in its persecution of Protestants. The versatile, feared and unscrupulous Capon was Bishop at the time of the reign of Henry VIII and held it during the period of the protectorate, the reign of Edward VI, and Mary. As the king's commissioner he sent several to the stake in the days of Henry VIII. Under Edward VI he became a Protestant; and, changing once more to Catholic under Mary, sat as a judge at the trial of Bishop Hooper and John Rogers. He saw the fall of Thomas Cromwell, the final suppression of the Jesuits and, the confiscation of chantries and colleges. During the more than twenty years of his episcopate he saw many people put to death for heresy, denying the king's supremacy, or on other pretences; among the more notable victims were Archbishop Cranmer, and Bishops Ridley and Latimer.