John Grady
John Grady may refer to:
- John C. Grady, American lawyer and politician
- John D. Grady, American criminal
- John Grady , American baseball player
- John Grady , United States Navy officer and Medal of Honor recipient
- John Grady , American sociologist
- John Grady , Australian author and social scientist
- John F. Grady, U.S. federal judge
- John Grady, Scottish politician