John Deering may refer to:

• John Deering (baseball) (1879–1943), professional baseball player
• John Deering (murderer) (1898–1938), murderer executed by State of Utah
• John Deering (politician) (1833–1904), mayor of Portland, Maine

• Judo at the 2011 Pan American Games - Men's 81 kg
• Judo at the 2011 Pan American Games - Men's 90 kg
• Judo at the 2011 Pan American Games - Qualification
• Judo at the 2011 Pan American Games - Women's 48 kg
• Judo at the 2011 Pan American Games - Women's 52 kg
• Judo at the 2011 Pan American Games - Women's 57 kg
• Judo at the 2011 Pan American Games - Women's 63 kg
• Judo at the 2011 Pan American Games - Women's 70 kg
• Judo at the 2011 Pan American Games - Women's +78 kg
• Judo at the 2011 Pan American Games - Women's 78 kg
• Judo at the 2011 Pan American Games – Men's 100 kg
• Judo at the 2011 Pan American Games – Men's +100 kg
• Judo at the 2011 Pan American Games – Men's 60 kg
• Judo at the 2011 Pan American Games – Men's 66 kg
• Judo at the 2011 Pan American Games – Men's 73 kg
• Judo at the 2011 Pan American Games – Men's 81 kg
• Judo at the 2011 Pan American Games – Men's 90 kg
• Judo at the 2011 Pan American Games – Qualification
• Judo at the 2011 Pan American Games – Women's 48 kg
• Judo at the 2011 Pan American Games – Women's 52 kg
• Judo at the 2011 Pan American Games – Women's 57 kg
• Judo at the 2011 Pan American Games – Women's 63 kg
• Judo at the 2011 Pan American Games – Women's 70 kg
• Judo at the 2011 Pan American Games – Women's 78 kg
• Judo at the 2011 Pan American Games – Women's +78 kg