John Alexander

John Alexander may refer to:

* John Alexander (painter) (died c.1733), Scottish historical painter and engraver
* John Alexander (minister) (1736 – 1765), scriptural commentator
* John Alexander (Ohio), (1777 – 1848) - United States Representative from Ohio
* John Alexander (MP), (1802 – 1885), Irish member of the UK Parliament (1853 – 1859)
* John Henry Alexander (1812 – 1867), scientist and president of Georges Creek Coal & Iron Co.
* John Alexander (Ireland) (died 1857), Irish recipient of the Victoria Cross
* John White Alexander (1856 – 1915), American painter
* John G. Alexander (1893 – 1971), United States Representative from Minnesota
* John Alexander (actor) (1897 – 1982), American stage and film actor
* John Alexander (tenor) (1923-1990), opera star
* John Alexander (tennis) (born 1951), Australian tennis player and commentator
* John Alexander (NASCAR driver) (born 1954)
* John Marshall Alexander, Jr., birthname of American singer Johnny Ace (1929–1954)
* John Alexander, CEO of Australian company Publishing and Broadcasting Limited
* John B. Alexander (1937-), retired US Army colonel and leading advocate for the development of non-lethal weapons