| Honorific Prefix: | The Right Honourable |
| The Lord Longford | |
| Office: | Member of Parliament for County Longford |
| Term Start: | 1765 |
| Term End: | 1766 |
| Predecessor: | Robert Harman John Gore |
| Alongside: | Ralph Fetherston |
| Successor: | Ralph Fetherston Wentworth Parsons |
| Birth Name: | Edward Michael Pakenham |
| Birth Date: | 1 April 1743 |
| Alma Mater: | Kilkenny College |
| Parents: | Thomas Pakenham, 1st Baron Longford Elizabeth Cuffe, 1st Countess of Longford |
| Children: | Catherine Wellesley, Duchess of Wellington Thomas Pakenham, 2nd Earl of Longford Sir Edward Pakenham Sir Hercules Robert Pakenham Henry Pakenham |
| Relations: | Sir Thomas Pakenham (brother) Arthur Wellesley, 2nd Duke of Wellington (grandson) |
Edward Michael Pakenham, 2nd Baron Longford (1 April 1743 – 3 June 1792) was an Anglo-Irish naval officer, peer and landowner.
Pakenham was the son of Thomas Pakenham, 1st Baron Longford and Elizabeth Cuffe, 1st Countess of Longford. His parents had seven children, including Sir Thomas Pakenham, a Royal Navy officer.
His father was the eldest son and heir of Edward Pakenham MP of Pakenham Hall (son of Sir Thomas Pakenham) and Margaret Bradestan (daughter and heiress of John Bradestan). His mother was the daughter and sole heiress of Michael Cuffe MP (second son and sole heir of Francis Cuffe), and Frances (née Sandford) Cuffe (a daughter of Henry Sandford of Castlereagh).
Longford was educated at Kilkenny College and joined the Royal Navy at the age of sixteen.
He served during the Seven Years' War taking part in naval engagements off the coasts of West Africa and North America. He was captured by the Spanish near the end of the war and held for over a year. After he returned home following the Treaty of Paris he briefly represented County Longford in the Irish House of Commons between 1765 and 1766.
In 1776, he inherited his father's title and seat in the Irish House of Lords.[1] In January 1778 he returned to active service during the American War of Independence, serving in the English Channel and Mediterranean Sea. He returned home in 1782 having earned around £5,000 in prize money.[2]
In 1768, Lord Longford married Hon. Catherine Rowley, daughter of Elizabeth Rowley, 1st Viscountess Langford and Hercules Langford Rowley MP. He was the owner of Pakenham Hall Castle in County Westmeath, which he systematically improved during his lifetime. Catherine and Edward had a number of children including:[3]
Langford died in June 1792, aged 49, and was succeeded in the barony by his eldest son Thomas, who in 1794 also succeeded his grandmother in the earldom of Longford.[6]