George Beresford, 1st Marquess of Waterford

George de la Poer Beresford, 1st Marquess of Waterford, KP, PC (Ire) (8 January 1735 – 3 December 1800), styled Earl of Tyrone from 1763 to 1789, was an Anglo-Irish politician.

Early life Beresford was the eldest surviving son of Marcus Beresford, 1st Earl of Tyrone and his wife, Lady Catherine Power, suo jure Baroness de la Poer. Among his siblings were the Hon. John Beresford, MP (who married Countess Anne Constantin de Ligondes), and William Beresford, 1st Baron Decies (who married Elizabeth FitzGibbon, sister of John FitzGibbon, 1st Earl of Clare).

His mother was the only daughter and heiress of James Power, 3rd Earl of Tyrone (who was also the 8th Baron Power), of Curraghmore, County Waterford. His father was the only son of Sir Tristram Beresford, 3rd Baronet, and his wife Nichola Sophia Hamilton (youngest daughter of Hugh Hamilton, 1st Viscount of Glenawly).

He was educated at Kilkenny College and Trinity College Dublin.

Career From 1757 to 1760, he was a Member of the Irish House of Commons for County Waterford from 1757 to 1760, and for Coleraine from 1761 until 1763, when he inherited his father's earldom, entered the Irish House of Lords and was admitted to the Privy Council of Ireland.

He was Governor of Waterford from 1766 and custos rotulorum of that county from 1769 to 1800, during which time he was made a Knight of St Patrick, created Baron Tyrone in the Peerage of Great Britain in 1786, and elevated as a marquess in 1789.