Baron Fermoy is a title in the Peerage of Ireland. It was created in 1856 for the politician Edmund Burke Roche, who represented County Cork and Marylebone in the House of Commons.
Barons Fermoy
- Edmond Burke Roche, 1st Baron Fermoy (1815-1874)
- Edward FitzEdmund Burke Roche, 2nd Baron Fermoy (1850-1920)
- James Boothby Burke Roche, 3rd Baron Fermoy (1852-1920)
- Edmund Maurice Burke Roche, 4th Baron Fermoy (1885-1955)
- Edmund James Burke Roche, 5th Baron Fermoy (1939-1984)
- Patrick Maurice Burke Roche, 6th Baron Fermoy (b. 1967)
Diana, Princess of Wales (1961-1997) was a great granddaughter of Edmond Burke Roche, 1st Baron Fermoy (1815-1874) through her mother, Frances Shand Kydd. Her maternal grandfather, 4th Lord Fermoy, was a friend of King George VI and the elder of the twin sons of the American heiress Frances Work and her first husband, Hon. James Boothby Burke Roche, who, after their divorce, became 3rd Baron Fermoy. Her maternal grandmother Ruth Burke Roche, Baroness Fermoy, DCVO, OBE (née Ruth Sylvia Gill), was a confidante and lady-in-waiting to Queen Elizabeth (later the Queen Mother), and founder of the annual King's Lynn Festival (of classical music) in Norfolk, England.