List of Famous people named William

William Brodrick, 8th Viscount Midleton, was a British peer, local landowner and Conservative politician in both Houses of Parliament, entering first the Commons for two years.

William II, called the Pious, was the Count of Provence.

William Drogo Montagu, 7th Duke of Manchester KP, known as Lord Kimbolton from 1823 to 1843 and as Viscount Mandeville from 1843 to 1855, was a British peer and Conservative Member of Parliament.

William Randolph I was an English American colonist, landowner, planter, merchant, and politician who played an important role in the history and government of the English colony of Virginia. He moved to Virginia sometime between 1669 and 1673, and married Mary Isham a few years later. His descendants include many prominent individuals including Thomas Jefferson, John Marshall, Paschal Beverly Randolph, Robert E. Lee, Peyton Randolph, Edmund Randolph, John Randolph of Roanoke, George W. Randolph, and Edmund Ruffin. Due to his and Mary's many progeny and marital alliances, they have been referred to as "the Adam and Eve of Virginia".

William Christoph of Hesse-Homburg was the second Landgraf of Hesse-Homburg during 1648–1669.

William Smith O'Brien was an Irish nationalist Member of Parliament (MP) and leader of the Young Ireland movement. He also encouraged the use of the Irish language. He was convicted of sedition for his part in the Young Irelander Rebellion of 1848, but his sentence of death was commuted to deportation to Van Diemen's Land. In 1854, he was released on the condition of exile from Ireland, and he lived in Brussels for two years. In 1856 O'Brien was pardoned and returned to Ireland, but he was never active again in politics.