The name John Clark may refer to:

• John Clark (1761-1821), American farmer and Governor of Delaware.
• John Clark (1766 – 1832), the 33rd governor of the U.S. state of Georgia.
• John Chamberlain Clark (1793 – 1852), a U.S. representative from New York.
• John Bullock Clark (1802 – 1885), a U.S. representative from Missouri and Confederate Congressman.
• John Bullock Clark, Jr. (1831 – 1903), also a U.S. representative from Missouri.
• John Bates Clark (1847 – 1938), an American economist.
• John Gordon Clark, MD (1926 – 1999: Harvard psychiatriast and pioneer cult researcher
• John Clark, an American Presbyterian minister who served as the 18th Senate Chaplain.
• John Clark, the mayor of Salt Lake City, Utah.
• John Clark, one of the eleven footballers in the Celtic F.C. known together as the "Lisbon Lions."
• John Clark, jazz horn player and composer.
• J. Desmond Clark, British archaeologist.
• John Maurice Clark, a U.S. economist
• John Clark (politician), former member for Elizabeth in South Australia

John Clark may also refer to the following fictional characters: John Clark was Governor of Delaware from January 21, 1817 until January 15, 1820. ... List of Delaware Governors Governors of New Sweden, 1639-1655 Peter Minuit 1639-1640 Peter Hollandaer Ridder 1640-1643 Johan Björnsson Printz 1643-1653 Johan Papegoya 1653-1654 Johan Classon Rising 1654-1655 Part of New Netherland, 1655-1664 Part of New York, 1664-1682 Part of Pennsylvania, 1682... John Bates Clark (January 26, 1847-March 21, 1938) was an American neo-classical economist. ... John Gordon Clark, M.D. (1923 - 1999) was a Harvard psychiatrist and pioneer in the research about damaging effects of cults. ... Among its duties, the chaplains job is to open each session with a prayer. ... The Lisbon Lions is the nickname given to the Glasgow Celtic team that won the European Cup at the Estadio Nacional in Lisbon, Portugal on May 25, 1967, defeating Inter Milan 2-1. ... John Desmond Clark (more commonly J. Desmond Clark, April 10, 1916 - February 14, 2002) was a British archaeologist noted particularly for his work on prehistorical Africa. ... Motto: United for the Common Wealth Nickname: Festival State Other Australian states and territories Capital Adelaide Government Governor Premier Const. ...

• John Clark, a fictional character in Tom Clancy novels.
• John Clark, Jr., a fictional detective in the American television series NYPD Blue, portrayed by Mark-Paul Gosselaar, or the character's father, Det. John Clark, Sr., portrayed by Joe Spano.

See also John Clarke. This article is about the fictional character in Tom Clancy novels. ... NYPD Blue was a long-running American television police drama. ... This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...