John Frith (1503–1533) was an English Protestant priest and martyr. He was educated at Eton College and King's College, Cambridge and after graduating in 1525 became a junior canon at Wolsey's College, Oxford. He was imprisoned for assisting William Tyndale to translate the New Testament into English and on his release in 1528 went to Marburg, where he translated Places by Patrick Hamilton. He also wrote Disputacion of Purgatorye, combating the writings of Sir Thomas More and Bishop John Fisher. After returning to England in 1532 he was arrested for heresy and imprisoned in the Tower of London, where he formulated the first Protestant views on the Sacraments. He was burned at the stake the following year. His works were finally published in 1573 by John Foxe.