List of Famous people named John

John Gregson was an English actor of stage, television and film, with 40 credited film roles. He was best known for his comedy roles.

John David Ashton is an American actor, known for his roles in the films Beverly Hills Cop, Beverly Hills Cop II, and Midnight Run.

John Michael Spender QC is a former Australian politician, diplomat and barrister. He was a member of the House of Representatives from 1980 to 1990, representing the Liberal Party, and was a shadow minister under Andrew Peacock and John Howard. He later served as Ambassador to France from 1996 to 2000.

John Francis Hirschbeck is a former umpire for Major League Baseball. He worked in the American League from 1984 to 1999 and worked in both leagues from 2000 to 2016. He was a crew chief at the time of his retirement, and wore uniform number 17 throughout his career. Hirschbeck announced his retirement following the 2016 season. In 2000, Hirschbeck was elected as the first president of the newly certified World Umpires Association, a position he held until 2009.

John Rolph was a Canadian physician, lawyer, and political figure. He was elected to the Parliament of Upper Canada in 1824 to represent Middlesex County and was considered the leader of the Reform faction in the 1820s. In 1837 he helped plan the Upper Canada Rebellion, but acted as the government's emissary to negotiate a truce once the rebellion began. In the 1850s he was elected to the newly-formed Parliament of the Province of Canada, representing Norfolk County, and was appointed as Minister of Crown Lands and Minister of Agriculture. He founded several medical schools throughout his life, including the Rolph School, and incorporated new teaching techniques and medical practices into his lectures. His actions against rival medical schools decreased public confidence in the ability of medical professionals to regulate themselves.

John Herbert was a Brazilian actor, director and producer.

John Claggett Danforth is an American politician, attorney and diplomat who began his career in 1968 as the Attorney General of Missouri and served three terms as United States Senator from Missouri. In 2004, he served briefly as United States Ambassador to the United Nations. Danforth is an ordained Episcopal priest.

John Laing Leal was a physician and water treatment expert who, in 1908, was responsible for conceiving and implementing the first disinfection of a U.S. drinking water supply using chlorine. He was one of the principal expert witnesses at two trials which examined the quality of the water supply in Jersey City, New Jersey, and which evaluated the safety and utility of chlorine for production of "pure and wholesome" drinking water. The second trial verdict approved the use of chlorine to disinfect drinking water which led to an explosion of its use in water supplies across the U.S.

John Sham Kin-Fun is a Hong Kong actor and film producer. His English name is sometimes written as John Shum. Whilst known primarily for his comedic acting roles in Hong Kong cinema, he also spent time as a political activist.

John William Waterhouse was an English painter known for working first in the Academic style and for then embracing the Pre-Raphaelite Brotherhood's style and subject matter. His artworks were known for their depictions of women from both ancient Greek mythology and Arthurian legend.