John Moffat

• John [Alston Moffat], Canadian entomologist
• John Moffat (physicist), professor and physicist
• John [Keith Moffat], professor and biophysicist at the University of Chicago
• John Moffat (missionary), British missionary and imperial agent in southern Africa
• John Moffat (mining pioneer), Scottish-born mining entrepreneur in Australia
• John Moffat (Royal Navy officer), Royal Navy Fleet Air Arm pilot
• John [Moffatt (actor)], English actor and playwright