List of Famous people named William

William VI, called William the Younger, was Duke of Brunswick-Lüneburg and Prince of Lüneburg from 1559 until his death. Until 1569 he ruled together with his brother, Henry of Dannenberg.

William Wakefield Baum was an American cardinal of the Catholic Church. He served as Bishop of Springfield-Cape Girardeau (1970–1973) and Archbishop of Washington (1973–1980) before serving in the Roman Curia as Prefect of the Congregation for Catholic Education (1980–1990) and Major Penitentiary (1990–2001). He was elevated to the College of Cardinals in 1976. At the time of his 1980 appointment as Prefect of the Congregation for Catholic Education, he was the highest-ranking American ever in the Church. Cardinal Baum was the longest-serving American cardinal in history.

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

William Longespée, 3rd Earl of Salisbury was an Anglo-Norman nobleman, primarily remembered for his command of the English forces at the Battle of Damme and for remaining loyal to his half-brother, King John. His nickname "Longespée" is generally taken as a reference to his great physical height and the oversize weapons that he used.

William the Lion, sometimes styled William I, also known by the nickname Garbh, "the Rough", reigned as King of Scots from 1165 to 1214. He had the second-longest reign in Scottish history before the Act of Union with England in 1707. James VI would have the longest.

William Jebor is a Liberian professional footballer who plays as a striker. He is a member and captain of the Liberia national football team.

William Edward Phipps was an American actor and producer, sometimes credited simply as William Phipps, perhaps best known for his roles in dozens of classic sci-fi and westerns, both in films and on television.