List of Famous people with last name Leinster

Emily FitzGerald, Duchess of Leinster, known before 1747 as Lady Emily Lennox, from 1747 to 1761 as The Countess of Kildare and from 1761 to 1766 as The Marchioness of Kildare, was the second of the famous Lennox sisters, daughters of Charles Lennox, 2nd Duke of Richmond.

William Robert FitzGerald, 2nd Duke of Leinster, KP, PC (Ire) was an Irish liberal politician and landowner. He was born in London.

Lieutenant-General James FitzGerald, 1st Duke of Leinster, PC (Ire), styled Lord Offaly until 1744 and known as The Earl of Kildare between 1744 and 1761 and as The Marquess of Kildare between 1761 and 1766, was an Irish nobleman, soldier and politician.

Murray Leinster was a nom de plume of William Fitzgerald Jenkins, an American writer of science fiction. He wrote and published more than 1,500 short stories and articles, 14 movie scripts, and hundreds of radio scripts and television plays.