Elizabeth Tailboys, 4th Baroness Tailboys of Kyme (c. 1520 – c. April 1563) was the daughter of Elizabeth Blount and Gilbert Tailboys, 1st Baron Tailboys of Kyme, and the second wife of Ambrose Dudley, 3rd Earl of Warwick. Through her mother she was a half-sister of Henry FitzRoy, 1st Duke of Richmond and Somerset, the only illegitimate child acknowledged by Henry VIII, King of England.