John McKinney is the name of:

John F. McKinney (1827–1903), American politician, representative from Ohio John P. McKinney (born 1964), Connecticut State Senator John R. McKinney (1921–1997), American World War II soldier awarded the Medal of Honor John T. McKinney (1785–1837), Indiana Supreme Court judge John McKinney (Florida judge) (1829–1871), United States federal judge John McKinney (Michigan politician) (1803–1870), Michigan Secretary of State and Treasurer John McKinney, winner of the 19th Scripps National Spelling Bee in 1946

See also Jack McKinney (disambiguation) John Trey McKenney (born 2006), American college basketball player