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.

John Beresford, MP (who married Countess Anne Constantin de Ligondes),[1] and William Beresford, 1st Baron Decies (who married Elizabeth FitzGibbon, sister of John FitzGibbon, 1st Earl of Clare).

[5] 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.

[6] 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.

[3] Lord Waterford died in 1800 and his titles passed to his eldest surviving legitimate son, Henry.