List of Famous people born in Leinster, Ireland

John Talbot, 10th Earl of Shrewsbury, 10th Earl of Waterford, was an English nobleman.

Anne Mortimer, also known as Anne de Mortimer, was a medieval English noblewoman who became an ancestress to the royal House of York, one of the parties in the fifteenth-century dynastic Wars of the Roses. It was her line of descent which gave the Yorkist dynasty its claim to the throne. Anne was the mother of Richard, Duke of York, and thus grandmother of kings Edward IV and Richard III.

Frederick William Henry Francis Conyngham, 7th Marquess Conyngham, known among friends and family as "Mount", was an Irish nobleman, landowner and soldier, who was styled Earl of Mount Charles until 1974.

Milo George Talbot CB was an Irish first-class cricketer and army officer. The son of the 4th Baron Talbot of Malahide, he attended Wellington College and the Royal Military Academy, Woolwich before being commissioned as an officer in the British Army's Royal Engineers. Shortly afterwards he played the sole first-class cricket match of his career for the Gentlemen of the South against the Players of the North. Talbot served on the staff of General Ross during the Second Anglo-Afghan War and remained in that country as a member of the Afghan Boundary Commission. He returned to Britain as a staff officer before returning to active duty during the Anglo-Egyptian conquest of Sudan. During this time he was present at the Battle of Omdurman and served on secondment to the Egyptian Army as a Major-General. Talbot retired in 1905 but was recalled to duty during the First World War when he gave advice on plans for the Gallipoli Campaign and the defence of Sudan.

General Sir Robert Brownrigg, 1st Baronet, GCB was an Irish-born British statesman and soldier. He brought the last part of Sri Lanka under British rule.

Lieutenant General Sir John Sharman Fowler, was a British Army engineer officer who specialised on telegraph on signals, and who was later Commander of British Forces in China.

William Russell Grace was an Irish-American politician, the first Roman Catholic mayor of New York City, and the founder of W. R. Grace and Company.

James Ryan was an Irish politician who served in every Fianna Fáil government from 1932 to 1965, successively as Minister for Agriculture (1932–47), Health and Social Welfare, and Finance (1957–65). He served as a Teachta Dála (TD) for Wexford from 1918 to 1922 and 1923 to 1965, and as senator from 1965 to 1969. He was in Sinn Féin until Fianna Fáil's 1926 foundation.

James Butler, 5th Earl of Ormond, 1st Earl of Wiltshire was an Anglo-Irish nobleman and soldier. Butler was a staunch Lancastrian and supporter of Queen consort Margaret of Anjou during the Wars of the Roses. He was beheaded by the victorious Yorkists following the Battle of Towton.

Brian Patrick Lenihan was an Irish Fianna Fáil politician who served as Tánaiste from 1987 to 1990, Minister for Defence from 1989 to 1990, Minister for Agriculture from March 1982 to December 1982, Minister for Fisheries from 1977 to 1979, Minister for Foreign Affairs from 1987 to 1989, 1979 to 1981 and January 1973 to March 1973, Minister for Transport and Power from 1969 to 1973, Minister for Education from 1968 to 1969, Minister for Justice from 1964 to 1969, Parliamentary Secretary to the Minister for Justice and Parliamentary Secretary to the Minister for Lands from 1961 to 1964. He served as a Teachta Dála (TD) from 1961 to 1973 and from 1977 to 1995. He served as a Senator for the Industrial and Commercial Panel from 1957 to 1961 and 1973 to 1977. He also served as a Member of the European Parliament (MEP) for the Oireachtas from 1973 to 1977.