John Davy

• John Davy , British chemist and younger brother of Sir Humphy Davy
• John Davy , Irish cricketer
• John Davy , English composer
• John M. Davy, U.S. Representative from New York
• John Davy, English Carthusian monk executed during the English Reformation
• John Davey of Zennor, Cornwall; considered to be one of the last people to have traditional knowledge of the Cornish language
• John Davy, MP for Dorchester
• John Davy , British journalist and science editor