John Nichols
John Nichols may refer to:
- John Nichols (printer) (1745–1826), English printer and author
 - John Nichols (law enforcement officer), (1918–1998), American law enforcement officer and politician
 - John Bowyer Nichols (1779–1863), English printer and antiquary, son of the above
 - John Gough Nichols (1806–1873), son of John Bowyer Nichols, English printer and antiquary
 - John G. Nichols (1812–1898), mayor of Los Angeles
 - John Nichols (politician) (1834–1917), U.S. Representative from North Carolina
 - John Nichols (Worcestershire cricketer) (1878–1952), English cricketer
 - John Treadwell Nichols (1883–1958), American ichthyologist
 - John Conover Nichols (1896–1945), United States Representative from Oklahoma
 - John B. Nichols (1931–2004), aviator and writer
 - John Nichols (writer) (1940–2023), author of The Milagro Beanfield War
 - John Nichols (journalist) (born 1959), American journalist and media activist
 - John F. Nichols, U.S. National Guard general and Adjutant General of Texas
 - John Nichols (British Army officer) (1896–1954)
 - John A. Nichols, American farmer and politician from New York
 - John J. Nichols, United States Air Force general
 - John Nichols (diplomat), British diplomat and Ambassador to Switzerland
 - John Nichols (discus thrower), winner of the 1989 NCAA DI discus championship
 - John Nichols, former member of the indie rock band Low
 
See also
- Jon Nichols (born 1981), English footballer
 - John H. Nichols House, historic building in Wapakoneta, Ohio
 - Jack Nichols (disambiguation)
 - John Nichol (disambiguation)
 - John Nicholls (disambiguation)