John Clark
John Clark may refer to:
Entertainment
- John Clark or Signor Brocolini, Irish-born American operatic singer and actor
- John Clark , English actor and theatre director
- John Clark , American jazz horn player and composer
- John Clark, Scottish indie/electronic musician from the band Bis who is also known as John Disco
- John Drury Clark, American author, chemist and rocket scientist
- John Heaviside Clark, Scottish engraver and painter
Military
- John Clark, American spy during the American Revolutionary War
- John George Walters Clark, British army officer
- John W. Clark , American soldier in the American Civil War
Politics
American
- John Clark , American governor and farmer of Delaware
- John Clark , American politician and governor of Georgia
- John Clark , Minnesota state senator
- John Clark , mayor of Salt Lake City, Utah
- John Bullock Clark, American politician and U.S. representative from Missouri and Confederate congressman
- John Bullock Clark Jr., American politician and U.S. representative from Missouri
- John C. Clark, American politician and U.S. representative from New York
- John Davidson Clark, American lawyer, member of the Council of Economic Advisers
- John E. Clark , American politician and judge
- John F. Clark, ninth director of the United States Marshals Service
- John Gee Clark, member of the California legislature
- John M. Clark, Sheriff of Suffolk County, Massachusetts
- John T. Clark, American politician and civil engineer from New York
Canadian
- John Clark , Scottish-born politician in Ontario, Canada
- John Arthur Clark, Conservative member of the Canadian House of Commons
- John Etter Clark, member of the Legislative Assembly of Alberta, 1952–1959
Other
- John Allworth Clark, Australian politician - mayor of Brisbane
- John Clark , English member of parliament and colonel in Cromwell's army
- John Harrison Clark, Cape Colony adventurer who ruled much of southern Zambia
- John Clark , sat in the South Australian House of Assembly
Science and academics
- John Clark, British printer and inventor
- John Brown Clark, mathematician, Vice President of the Royal Society of Edinburgh
- J. Desmond Clark, British archaeologist
- J. P. Clark, Nigerian poet and professor
- John Bates Clark, American economist
- John Drury Clark, American author, chemist and rocket scientist
- John E. Clark, American anthropologist
- John Frank Clark, American Africanist and professor of International Relations
- John Gordon Clark, Harvard psychiatrist and pioneer cult researcher
- John Maurice Clark, American economist
- John P. Clark, American philosopher and anarchist
- John S. Clark, Scottish entomologist
- John Walter Clark, American physicist
- John Willis Clark, English academic and antiquarian
Sports
- John Clark , Taiwanese baseball player
- John Clark, member of the Northeastern University athletics Hall of Fame
- John Clark , Irish-American bare-knuckle boxer
- Johnny Clark, English boxer
- John Clark , Australian cricketer
- John Clark, footballer for Bradford City and Cardiff City
- John Clark , footballer formerly with Celtic F.C., one of the Lisbon Lions
- John Clark, footballer formerly with Dundee United
- John Clark, British motorcycle racer
- John Clark , English rugby league footballer of the 1950s and 1960s
- John Clark , Australian rower
- John Clark , New Zealand rower
Other
- John Clark , Scottish medical practitioner in Newcastle upon Tyne
- John Clark , American clergyman who served as chaplain of the senate
- John Clark , Scottish writer
- John Kinzie Clark, trader, trapper and early settler in the Chicago area
- John Howard Clark, editor of The South Australian Register, 1870–1877
- John Kirkland Clark, New York City assistant district attorney
- John Allen Clark, British businessman
- John Clark, character in Tom Clancy novels
- John Clark Jr., detective in the American television series ''NYPD Blue''