• John C. Calhoun
  John C. Calhoun
  John Caldwell Calhoun was a leading politician and political theorist from South Carolina during the first half of the 19th century. Calhoun eloquently spoke out on every issue of his day, but often changed positions. Calhoun began his political career as a nationalist, modernizer, and proponent...
  
  , seventh Vice President of the United States, U.S. Senator
• John Calhoun (software developer)
  John Calhoun (software developer)
  John Calhoun is an Apple Macintosh software developer. In the late 1980s and early 1990s, he developed a series of shareware games for the Macintosh and Windows, under the name Soft Dorothy Software...
  
  , American computer programmer
• John B. Calhoun
  John B. Calhoun
  John B. Calhoun was an American ecologist and research psychologist noted for his studies of population density and its effects on behavior. He claimed that the bleak effects of overpopulation on rodents were a grim model for the future of the human race...
  
  , psychologist noted for his 1947 Norway rat and 1970s mice population dynamic studies
• John Coleman Calhoun, politician in Alberta, Canada
• John William Calhoun
  John William Calhoun
  John William Calhoun was the 11th president of the University of Texas at Austin between 1937 and 1939. Calhoun Hall, a building constructed in 1968 and located on the University of Texas campus, is named after him.-See also:...
  
  , mathematics professor, University of Texas comptroller and president

See also

• John Calhoon
  John Calhoon
  John Calhoon was a United States Representative from Kentucky. He was born in Henry County, Kentucky in 1797. He studied law, was admitted to the bar, and practiced....
  
   (1797 - death date unknown), United States Representative from Kentucky
• John Calhoun Bell
  John Calhoun Bell
  John Calhoun Bell was a U.S. Representative from Colorado.Born near Sewanee, Tennessee, Bell attended public and private schools in Franklin County. He studied law in Winchester, Tennessee, and was admitted to the bar in 1874. He moved to Colorado in 1874 and commenced practice in Del Norte,...
  
  , United States Representative
• John Calhoun Johnson
  John Calhoun Johnson
  John Calhoun Johnson was a native of Deersville, Ohio, who practiced law and operated a ranch in California.Johnson crossed the plains with ox teams in the spring of 1848...
  
  , lawyer and rancher
• John Calhoun Phillips
  John Calhoun Phillips
  John Calhoun Phillips was the third Governor of the state of Arizona. He served between 1929-1931.Born in 1870 in Vermont, Illinois, calling himself the "ugliest man in Arizona", Phillips was a construction worker in his early life and helped to build the state capitol building that he was later...
  
  , governor of Arizona
• John Calhoun Sheppard
  John Calhoun Sheppard
  John Calhoun Sheppard was the 82nd Governor of South Carolina from July 10, 1886 to November 30, 1886.Sheppard was born in Edgefield County and attended Bethel Academy in Edgefield. Upon graduating from Furman University with a law degree, he was admitted to the bar in 1871...
  
  , governor of South Carolina