| Honorific Prefix: | The Right Honourable |
| The Earl of Granard | |
| Honorific Suffix: | PC |
| Office: | Member of Parliament for St Johnstown |
| Term Start: | 1762 |
| Term End: | 1768 |
| Predecessor: | Viscount Forbes Charles Newcomen |
| Alongside: | Charles Newcomen |
| Successor: | Ralph Fetherston Charles Newcomen |
| Birth Name: | George Forbes |
| Birth Date: | 2 April 1740 |
| Parents: | George Forbes, 4th Earl of Granard Letitia Forbes, Countess of Granard |
| Spouse: | |
| Children: | 7 |
| Relations: | John Forbes (uncle) |
| Allegiance: | Irish Army, British Army |
| Branch: | Tangier Regiment 76th Regiment of Foot 29th Regiment of Foot |
| Rank: | Lt.-Gen. |
George Forbes, 5th Earl of Granard PC (2 April 1740 – 15 April 1780) was an Anglo-Irish politician and peer.
Forbes was born on 2 April 1740. He was the only son of Lt.-Gen. George Forbes, 4th Earl of Granard and the former Letitia Davys (d. 1778), who were first cousins (their mother's were sisters).[1]
His paternal grandparents were George Forbes, 3rd Earl of Granard and the Hon. Mary (née Stewart) Preston (widow of Phineas Preston and eldest daughter of William Stewart, 1st Viscount Mountjoy).[2] His mother was the daughter of Arthur Davys and Hon. Catherine Stewart (second daughter of the 1st Viscount Mountjoy).[3] His paternal uncle was Admiral of the Fleet John Forbes, the father of his cousins, Katherine Wellesley-Pole, Countess of Mornington (wife of William Wellesley-Pole, 3rd Earl of Mornington) and Maria Villiers, Countess of Clarendon (wife of John Villiers, 3rd Earl of Clarendon).[4]
Between 1762 and 1768 he sat in the Irish House of Commons as the Member of Parliament for St Johnstown.[5]
On 16 October 1769 Forbes succeeded to his father's earldom and assumed his seat in the Irish House of Lords. From 1769 to his death he served as Custos Rotulorum of Longford. In 1771, he was made a privy councillor of Ireland.
Forbes was twice married. His first marriage was on 12 July 1759 to Dorothea Bayly (1738–1764), the second daughter of Sir Nicholas Bayly, 2nd Baronet of Plas Newydd, by his first wife Caroline Paget (daughter and heiress of Brig.-Gen. Thomas Paget, Governor of Minorca). Dorothea's brother, Henry Bayly, later took the surname of their maternal grandfather was elevated to the peerage as the Earl of Uxbridge. Before Dorothea's death on 19 February 1764, they were the parents of one child:
Forbes remarried on 27 April 1766 to Lady Georgiana Augusta Berkeley (1749–1820) in London. Lady Georgiana was the eldest daughter of Augustus Berkeley, 4th Earl of Berkeley and Elizabeth Drax (eldest daughter of Henry Drax of Ellerton Abbey). Together, they were the parents of six children, including:
Upon his death on 15 April 1780, he was succeeded in his title by his eldest son from his first marriage, George Forbes. His widow remarried to Rev. Samuel Little in January 1781.[6]