John Porter may refer to:

• John Porter (captain) (fl. 1759), first captain of the first HMS Hercules
• John Porter (bishop) (fl. 1790s), a Bishop of Clogher
• John Porter (Pennsylvania politician) (fl. 1810s), a Pennsylvania politician, U.S. Representative
• John Addison Porter (1822-1866), United States professor of chemistry
• John Porter (horseman) (1838-1922) was a trainer in British Thoroughbred flat racing
• John Clinton Porter (1872-1959), a California politician, mayor of Los Angeles
• John Porter (sociologist) (1921-1979), a Canadian sociologist
• John Porter (Illinois politician) (born 1935), an Illinois politician, U.S. Representative
• John Porter (musician) (born 1947), a British guitarist, bassist, and producer

See also

• Jon Porter (born 1955), US Congressman from Nevada
• John Porter Stakes United Kingdom Thoroughbred horse named for the trainer

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