John Boyle, 5th Earl of Cork and 5th Earl of Orrery, FRS (13 January 1707 – 16 November 1762) was a writer and a friend of Jonathan Swift, Alexander Pope and Samuel Johnson.
The only son of Charles Boyle, 4th Earl of Orrery, and his wife Lady Elizabeth Cecil (1687–1708), daughter of John Cecil, 5th Earl of Exeter. He was born at Westminster and attended Christ Church, Oxford. He published a translation of the letters of Pliny the Younger in 1751, and Remarks on the Life and Writings of Jonathan Swift in the same year, and the Memoirs of Robert Carey, 1st Earl of Monmouth. His Letters from Italy was published in 1774 by J. Duncombe.
Boyle married first to Henrietta Douglas, who had issue including:
He married secondly to Margaret Hamilton, who had issue including: