Henry Boyle, 3rd Earl of Shannon, KP, PC (Ire) (8 August 1771 – 22 April 1842), styled Viscount Boyle from 1764 until 1807, was an Anglo-Irish politician and peer who was one of the last surviving members of the Parliament of Ireland. He represented County Cork in the Parliament of the United Kingdom from 1801 to 1807. He then briefly served as Member of Parliament for Bandon in 1807, succeeding as Earl of Shannon later in the same year. He served as Custos rotulorum for County Cork from 1807 to his death. He was the first Lord Lieutenant of Cork from 1831 to his death.[1][2]