Thomas Boleyn, 1st Earl of Wiltshire, 1st Earl of Ormond, 1st Viscount Rochford KG KB (c. 1477 – 12 March 1539) was an English diplomat and politician in the Tudor era. He was born at the family home, Hever Castle, Kent, which had been purchased by his grandfather Sir Geoffrey Boleyn, who was a wealthy mercer. He was buried at St. Peter's parish church in the village of Hever. His parents were Sir William Boleyn (1451 – 10 October 1505) and Lady Margaret Butler (1454–1539). He was the father of Anne Boleyn, the second wife of Henry VIII of England. As such, he was the maternal grandfather of Queen Elizabeth I.