List of Famous people named William

William Gordon Lennox (1884–1960) was an American neurologist and epileptologist who was a pioneer in the use of electroencephalography (EEG) for the diagnosis and treatment of epilepsy. He graduated from Colorado College and Harvard Medical School.

William Mervyn Pickwoad was an English actor best known for his portrayal of the bishop in the clerical comedy All Gas and Gaiters, the old gentleman in The Railway Children and Inspector Charles Rose in The Odd Man and its sequels.

William Aitcheson Haswell was a Scottish-Australian zoologist specialising in crustaceans, winner of the 1915 Clarke Medal.

William I of Sancerre was the second Count of Sancerre, Lord of Saint-Brisson and La Ferté-Loupière from 1191 until his death. He was the eldest son of Stephen I, Count of Sancerre. In 1217 he accompanied his brother-in-law, Peter II of Courtenay, who had just been elected Latin Emperor, on his journey to Constantinople. Both were captured and imprisoned by the ruler of Epirus, Theodore Komnenos Doukas, and died in prison. He was succeeded by his son, Louis I.

William VII of Chalon was a prince of Orange and lord of Arlay. He was the son of Louis II lord of Arlay and his wife Johanna of Montfaucon.

Major-General Sir William Julius Gascoigne was a British Army officer and served as General Officer Commanding the Militia of Canada from 1895 to 1898.

Prof William Whitehead Watts FRS HFRSE FGS FMS LLD was a British geologist.

William Diller Matthew FRS was a vertebrate paleontologist who worked primarily on mammal fossils, although he also published a few early papers on mineralogy, petrological geology, one on botany, one on trilobites, and he described Tetraceratops insignis, which was much later suggested to be the oldest known therapsid.