John Mooney

• John Mooney (activist), American activist, Vice-President of Transport Workers Union in New York City
• John Mooney (basketball), American basketball player
• John Mooney (cricketer), Irish cricketer
• John Mooney (historian), Scottish historian, founder of the Orkney Antiquarian Society
• John Mooney (musician), American blues guitarist based in New Orleans, Louisiana
• John Mooney (canoeist), American sprint canoer
• John J. Mooney, American chemical engineer who was co-inventor of the three-way catalytic converter
• John J. Mooney (horse racing), Canadian horse racing executive
• Sir John Mooney (Irish politician), Irish politician, Member of Parliament for South County Dublin 1900–1906, and Newry 1906–1918
• Johnny Mooney (footballer), Scottish footballer
• Johnny Mooney, Irish Gaelic footballer
• Jackie Mooney, Irish soccer player
• J. D. Mooney, American jockey and trainer
• Canadian politician
• John David Mooney, Chicago-based artist
• John J. Mooney,