List of Famous people named William

William Douglas, 2nd Earl of Angus was a Scottish nobleman and soldier. The son of George Douglas, 1st Earl of Angus and Princess Mary of Scotland, he was a grandson of King Robert III.

William of Winchester, also called in English William of Lunenburg or William Longsword, a member of the House of Welf, was heir to his family's allodial lands in the Duchy of Saxony after the deposition of his father, Duke Henry the Lion in 1180.

William Jephson was an English politician who sat in the House of Commons from 1640 to 1648. He served in the Parliamentary army and was Cromwell's envoy to Sweden.

William Montagu Hay, 10th Marquess of Tweeddale KT DL, known before 1878 as Lord William Hay or Lord William Montagu Hay, was a Scottish landowner, peer and politician. He was born at Yester House, near Gifford, East Lothian, and served in British India as a member of the Bengal Civil Service and later as a Liberal Member of Parliament.

General William John Kerr, 5th Marquess of Lothian was a British soldier and peer, styled Lord Newbattle until 1767 and Earl of Ancrum from 1767 to 1775. He was buried at St Andrew's parish Church, Farnham, Surrey on 19 January 1815.

William Mills was a British Member of Parliament and Director, East India Company.

William of Savoy was a bishop from the House of Savoy. He was a son of Thomas, Count of Savoy and Margaret of Geneva. He was elected bishop of Valence in 1224. He negotiated the weddings of queens, and was an advisor to Henry III of England. Between his religious roles and his family relations, his influence was noted from London to Rome.

William Hayward Wakefield was an English colonel, the leader of the first colonising expedition to New Zealand and one of the founders of Wellington. As a leader, he attracted much controversy.