List of Famous people named William

William Howard (1793–1834) was an American topographical engineer who was one of the first to work for the Baltimore and Ohio Railroad. When the railroad built its first cars using friction bearings first developed by Ross Winans, Howard made his own design and patented it on November 2, 1828.

William Jennings "Bill" Capell, a retired grocery clerk from Yuba City, California, is the heir presumptive to the Earldom of Essex. He will be the 12th Earl if the current earl, Paul Capell, 11th Earl of Essex, predeceases him without in-wedlock male issue. He had considered renouncing the earldom if it would require him to give up his United States citizenship. United States law requires only government officeholders without Congressional authorization and persons wishing to become naturalized citizens, however, to renounce titles of nobility. As Mr. Capell is in neither category, there would be no legal impediment to his use of the title as a U.S. citizen; indeed there is precedent in the case of the Earl of Wharncliffe, currently a Maine construction worker.

William Harding Jackson was a U.S. civilian administrator, New York lawyer, and investment banker who served as Deputy Director of the Central Intelligence Agency. Jackson also served briefly under President Dwight D. Eisenhower as Acting United States National Security Advisor from 1956 to 1957.

William Hughes Miller is a professor at the University of California, Berkeley and a leading researcher in the field of theoretical chemistry.

William Henry Gerdts Jr. was an American art historian and professor of Art History at the CUNY Graduate Center. Gerdts was the author of over twenty-five books on American art. An expert in American Impressionism, he was also well known for his work on nineteenth-century American still life painting.