List of Famous people named William

William Maurice, Prince of Nassau-Siegen was a Count of Nassau-Siegen. In 1664, he was elevated to Prince of Nassau-Siegen.

William Ellery was a signer of the United States Declaration of Independence as a representative of Rhode Island. In 1764, the Baptists consulted with Ellery and Congregationalist Reverend Ezra Stiles on writing a charter for the college that became Brown University. Ellery and Stiles attempted to give control of the college to the Congregationalists, but the Baptists withdrew the petition until it was rewritten to assure Baptist control. Neither Ellery nor Stiles accepted appointment to the reserved Congregationalist seats on the board of trustees.

William Allen Egan was an American Democratic politician. He served as the first and the fourth governor of the State of Alaska from January 3, 1959 to 1966 and 1970 to 1974. Born in Valdez, Alaska, Egan is one of only two governors in the state's history to have been born in Alaska. He was the Democratic nominee in five gubernatorial elections.

William Orlando Markham (1818–1891) was an English physician and pioneer of cardiology.

William I of Berg was the son of Count Adolf VII of Berg and of Margaret of Hochstaden.

William Ferrers, 1st Baron Ferrers of Groby was an English peer who lived under two kings, Edward I and Edward II. His baronial caput was Groby in Leicestershire.

William Ferguson Massey, commonly known as Bill Massey, was a politician who served as the 19th Prime Minister of New Zealand from May 1912 to May 1925. He was the founding leader of the Reform Party, New Zealand's second organised political party, from 1909 until his death.