John Arnot

• John Arnot Jr., American politician
• John Arnot, prisoner on the St. Michael of Scarborough
• Sir John Arnot of Berswick, twice Lord Provost of Edinburgh
• Sir John Arnot, 3rd Baronet of the Arnot baronets
• Sir John Arnot, 4th Baronet of the Arnot baronets
• Sir John Arnot, 5th Baronet of the Arnot baronets