James Archer (1550–1620) was an Irish Roman Catholic priest of the Society of Jesus who played a controversial role in the Nine Years War during the House of Tudor religious persecution of the Catholic Church in Ireland and the Elizabethan wars against the Irish clans. During the final decade of the reign of Queen Elizabeth I, Fr. Archer he became a leading hate figure in English government propaganda, but his lasting achievement was in the establishment of Irish seminaries in Catholic Europe as part of the counter reformation.