List of Famous people named William

Brigadier-General Sir William Bromley-Davenport, was a British soldier, footballer and Conservative politician. He fought with distinction in both the Second Boer War and the First World War. An MP from 1886 to 1906, he held political office under Arthur Balfour as Financial Secretary to the War Office from 1903 to 1905.

William Dennis Gargan was an American film, television and radio actor. He was the 5th recipient of the Screen Actors Guild Lifetime Achievement Award in 1967, and in 1941, was nominated for the Academy Award for Best Supporting Actor for his role as Joe in They Knew What They Wanted. He acted in decades of movies including parts in Follow the Leader, Rain, Night Flight, Three Sons, Isle of Destiny and many others. The role he was best known for was that of a private detective Martin Kane in the 1949–1952 radio-television series Martin Kane, Private Eye. In television, he was also in 39 episodes of The New Adventures of Martin Kane.

William Zeckendorf Sr. was a prominent American real estate developer. Through his development company Webb and Knapp — for which he began working in 1938 and which he purchased in 1949 — he developed a significant portion of the New York City urban landscape. Architects I. M. Pei and Le Corbusier designed structures for Zeckendorf's development projects.