John Cannon

• John Cannon , former member of the Tampa Bay Buccaneers
• John Cannon , British historian
• John Cannon , Canadian builder and politician
• John Cannon , Canadian auto racer
• John Cannon , Canadian rugby union player
• John Cannon, Scottish weightlifter
• John K. Cannon, U.S. Air Force general
• John Q. Cannon, American newspaper editor and general authority of The Church of Jesus Christ of Latter-day Saints
• Ace Cannon, American saxophonist