John Wycliffe (/ˈwɪklɪf/; also spelled Wyclif, Wycliff, Wiclef, Wicliffe, Wickliffe; c. 1320 – 31 December 1384) was an English scholastic philosopher, theologian, Biblical translator, reformer, and seminary professor at Oxford. He was an influential dissident within the Roman Catholic priesthood during the 14th century.