John Mackintosh
John Mackintosh may refer to:
- John Mackintosh (luthier), Scottish luthier and author
- John MacKintosh, farmer and politician in Prince Edward Island
- John Mackintosh (soldier), British military aide-de-camp to Simon Bolivar and Antonio Jose de Sucre, commander of the British Legion and the Albion and Santander Battalions in the South American wars of independence
- John Mackintosh (historian), Scottish historian
- John Mackintosh (philanthropist), Gibraltarian businessman and philanthropist
- John Mackintosh (confectioner), founder of the British confectionery company Mackintosh's
- John Mackintosh (Canadian politician), Canadian provincial politician from Alberta
- John Mackintosh, [2nd Viscount Mackintosh of Halifax], British peer
- John Mackintosh (Scottish politician), Scottish Labour politician
- Clive Mackintosh, [3rd Viscount Mackintosh of Halifax], British peer