John Clark may refer to:
Entertainment
- John Clark or Signor Brocolini (1841–1906), Irish-born American operatic singer and actor
- John Clark (English actor) (1932–2023), English actor and theatre director
- John Clark (musician) (born 1944), American jazz horn player and composer
- John Clark (born 1978), Scottish indie/electronic musician from the band Bis who is also known as John Disco
- John Drury Clark (1907–1988), American author, chemist and rocket scientist
- John Heaviside Clark (c. 1771–1836), Scottish engraver and painter
Military
- John Clark (spy), American spy during the American Revolutionary War
- John George Walters Clark (1892–1948), British army officer
- John W. Clark (Medal of Honor) (1830–1898), American soldier in the American Civil War
Politics
American
- John Clark (Delaware governor) (1761–1821), American governor and farmer of Delaware
- John Clark (Georgia governor) (1766–1832), American politician and governor of Georgia
- John Clark (Minnesota politician) (c. 1825–1904), Minnesota state senator
- John Clark (Utah politician) (1834–1908), mayor of Salt Lake City, Utah
- John Bullock Clark (1802–1885), American politician and U.S. representative from Missouri and Confederate congressman
- John Bullock Clark Jr. (1831–1903), American politician and U.S. representative from Missouri
- John C. Clark (1793–1852), American politician and U.S. representative from New York
- John Davidson Clark (1884–1961), American lawyer, member of the Council of Economic Advisers (1946–1953)
- John E. Clark (politician) (1910–2003), American politician and judge
- John F. Clark, ninth director of the United States Marshals Service
- John Gee Clark (1890–1984), member of the California legislature
- John M. Clark (1821–1902), Sheriff of Suffolk County, Massachusetts
- John T. Clark, American politician and civil engineer from New York
Canadian
- John Clark (Canadian politician) (1835–1896), Scottish-born politician in Ontario, Canada
- John Arthur Clark (1886–1976), Conservative member of the Canadian House of Commons
- John Etter Clark (1915–1956), member of the Legislative Assembly of Alberta, 1952–1959
Other
- John Allworth Clark (1846–1932), Australian politician - mayor of Brisbane
- John Clark (Roundhead) (fl. 1650s), English member of parliament and colonel in Cromwell's army
- John Harrison Clark (c. 1860–1927), Cape Colony adventurer who ruled much of southern Zambia
- John Clark (Australian politician) (1907–1984), sat in the South Australian House of Assembly
Science and academics
- John Clark (1785–1853), British printer and inventor
- John Brown Clark (1861–1947), mathematician, Vice President of the Royal Society of Edinburgh
- J. Desmond Clark (1916–2002), British archaeologist
- J. P. Clark (John Pepper Clark-Bekederemo, 1935–2020), Nigerian poet and professor
- John Bates Clark (1847–1938), American economist
- John Drury Clark (1907–1988), American author (as John D. Clark), chemist and rocket scientist
- John E. Clark (born 1952), American anthropologist
- John Frank Clark, American Africanist and professor of International Relations
- John Gordon Clark (1926–1999), Harvard psychiatrist and pioneer cult researcher
- John Maurice Clark (1884–1963), American economist
- John S. Clark (1885–1956), Scottish entomologist
- John Walter Clark (born 1935), American physicist
- John Willis Clark (1833–1910), English academic and antiquarian
Sports
- John Clark (basketball), member of the Northeastern University athletics Hall of Fame
- John Clark (boxer) (1849–1922), Irish-American bare-knuckle boxer
- Johnny Clark (1947–2020), English boxer
- John Clark (cricketer) (born 1928), Australian cricketer
- John Clark (English footballer), footballer for Bradford City and Cardiff City
- John Clark (footballer, born 1941), footballer formerly with Celtic F.C., one of the Lisbon Lions
- John Clark (footballer, born 1964), footballer formerly with Dundee United
- John Clark (motorcycle racer), British motorcycle racer
- John Clark (rugby league) (died 2011), English rugby league footballer of the 1950s and 1960s
- John Clark (Australian rower) (born 1948), Australian rower
- John Clark (New Zealand rower) (born 1944), New Zealand rower
Other
- John Clark (physician) (1744–1805), Scottish medical practitioner in Newcastle upon Tyne
- John Clark (chaplain) (1784–1853), American clergyman who served as chaplain of the senate
- John Clark (land agent) (died 1807), Scottish writer
- John Kinzie Clark (1792–1865), trader, trapper and early settler in the Chicago area
- John Howard Clark (1830–1878), editor of The South Australian Register, 1870–1877
- John Kirkland Clark (1877–1963), New York City assistant district attorney
- John Allen Clark (1926–2001), British businessman
- John Clark (Tom Clancy character), character in Tom Clancy novels
- John Clark Jr., detective in the American television series NYPD Blue
See also
- Jon Clark (disambiguation)
- John Bates Clark Medal, an award given by the American Economic Association
- John Clark Field, a multi-use stadium in Plano, Texas, United States
- Capt. John Clark House, a historic house near Canterbury, Connecticut, United States
- John Clark House (Clarksdale, Mississippi), a historic house in Clarksdale, Mississippi, United States
- John Clarke (disambiguation)
- John Clerk (disambiguation)
- John Clerke (disambiguation)
- Jonathan Clark (disambiguation)
Topics referred to by the same termThis disambiguation page lists articles about people with the same name. If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: