William Clark (disambiguation)
William Clark was an American soldier and explorer; governor of Missouri Territory.
William Clark may also refer to:
Business
- W. H. Clark (brewer), brewer in South Australia
- William Bell Clark, American advertising executive and naval historian
- William Clark (stockbroker), Australian financier and racehorse owner in London
Entertainment
- Bill Clark (screenwriter), former New York Police Department detective and television writer
- William Clark (artist), Scottish marine painter
- William Andrews Clark Jr., American violinist and founder of the Los Angeles Philharmonic
- Bill Clark (musician), American jazz drummer
- Billy C. Clark, American author
Military
- William A. Clark (soldier), American Civil War soldier and Medal of Honor recipient
- William Philo Clark, U.S. Army officer
- William Leon Clark, Deputy Chief of Chaplains of the U.S. Air Force
Politics
Canada
- William George Clark (politician), Canadian politician
- William Harold Clark, Canadian politician in Alberta
- William Mortimer Clark, Canadian politician
- Keir Clark, Canadian merchant and political figure in Prince Edward Island
United Kingdom
- William D. Clark, economist and first director of the Overseas Development Institute
- William Clark, Baron Clark of Kempston, British politician
- William Henry Clark, British civil servant and diplomat
- William Moore Wallis Clark, Ulster Unionist member of the Senate of Northern Ireland
United States
- William Clark (merchant), merchant and town official in Boston, Massachusetts
- William Clark (congressman), US Congressman from Pennsylvania and U.S. Treasurer
- Billy J. Clark, American physician and politician from New York
- William Clark Jr. (1798–1871), American politician and signatory to the Texas Declaration of Independence
- William Clark Jr. (diplomat), former United States Ambassador to India
- William Clark (politician, born 1811), New York politician
- William A. Clark, copper baron and United States Senator from Montana
- William A. Clark (Maryland politician), American politician from Maryland
- William G. Clark, American jurist and politician
- William G. Clark Jr., American jurist and politician in Massachusetts
- William P. Clark Jr., American politician, and United States Secretary of the Interior
- Ramsey Clark, American politician, United States Attorney General
- William Thomas Clark, American soldier and Congressman from Texas, 1869–1872
- William Walter Clark, American politician from Wisconsin
- William White Clark, Confederate politician
Religion
- William Clark (priest), English Roman Catholic priest and conspirator
- William Clark (bishop), Canadian Anglican bishop
- William Hawley Clark, bishop of the Episcopal Diocese of Delaware
- William Robinson Clark, Canadian theologian
- William Clark (Anglican), Massachusetts cleric
Science
- William Andrew Clark, British botanist
- William Bullock Clark, American geologist
- William Inglis Clark, Scottish pharmaceutical chemist
- William J. Clark, Scottish orthodontist
Sports
Football and rugby
- Bill Clark (American football), retired college football coach
- Bill Clark (Australian footballer), Australian rules footballer
- Bill Clark (rugby union), New Zealand rugby player
- Billy Clark (footballer, born 1881), Scottish football player
- Billy Clark (footballer, born 1967), English football player
- Billy Clark (footballer, born 1991), English football player
- William Clark (football manager), Scottish football manager
- William Dennison Clark, American football player
- William Clarke (footballer, fl. 1897–1900), football player for Lincoln City and Aberdeen F.C.
- Willie Clarke (footballer), born William Clark, Scottish football player for Aston Villa, Bradford and Bristol Rovers
Other sports
- William Clark (archer), American Olympic archer
- William Clark (boxer), American boxer who competed in the 1920 Summer Olympics
- William Clark (skier), Canadian skier and Olympic competitor
- Will Clark, American professional baseball player
- Bill Clark (basketball), American basketball player
Professors
- William Clark (anatomist), Professor of Anatomy at Cambridge University
- William George Clark, British scholar of Shakespearean literature
- William S. Clark, American agricultural scientist and educator at University of Massachusetts
- William W. Clark, professor of art history
- William C. Clark, American ecologist and environmental policy analyst
- William A. V. Clark, professor of geography
- William Mansfield Clark, American chemist
Other
- William Tierney Clark, English engineer and bridge designer
- William Clark (inventor), British civil engineer and inventor
- William Nairne Clark, public notary and publisher in Australia
- William Ovens Clark, barrister and judge in British India
- William Clark (judge), American federal judge