List of Famous people named William

William Popp is a Japanese footballer who plays as a goalkeeper for FC Machida Zelvia. Born in Japan, his father is American while his mother is Japanese.

William Willoughby, 5th Baron Willoughby de Eresby KG was an English baron.

William George Hay, 18th Earl of Erroll, KT, GCH, PC, styled Lord Hay between 1815 and 1819, was a Scottish peer and politician.

William I de Ferrers, 3rd Earl of Derby was a 12th-century English Earl who resided in Tutbury Castle in Staffordshire and was head of a family which controlled a large part of Derbyshire known as Duffield Frith. He was also a Knight Templar.

William de Beauchamp (c.1186–1260) was a British judge and High Sheriff.

For his great-great grandson, see William Ormsby-Gore, 4th Baron Harlech.

Field Marshal William Riddell Birdwood, 1st Baron Birdwood, was a British Army officer. He saw active service in the Second Boer War on the staff of Lord Kitchener. He saw action again in the First World War as Commander of the Australian and New Zealand Army Corps during the Gallipoli Campaign in 1915, leading the landings on the peninsula and then the evacuation later in the year, before becoming commander-in-chief of the Fifth Army on the Western Front during the closing stages of the war. He went on to be general officer commanding the Northern Army in India in 1920 and Commander-in-Chief, India, in 1925.