Sir John Smith

Sir John Smith may refer to:


 * John Smith (High Sheriff of Kent) (1557–1608), English politician
 * John Smith (banneret) (1616–1644), English Royalist soldier
 * Sir John Silvester Smith, 1st Baronet (1734–1789), first of the Smith-Dodsworth baronets
 * Any of the first three Smith baronets:
 * Sir John Smith, 1st Baronet (1744–1807)
 * Sir John Wyldbore Smith, 2nd Baronet (1770–1852), second Smith-Marriott baronet
 * Sir John James Smith, 3rd Baronet (1800–1862), third Smith-Marriott baronet
 * John Smith (British Army officer, born 1754) (1754–1837), British general
 * Sir John Mark Frederick Smith (1790–1874), British general
 * John Cyril Smith (1911–1997), English criminal legal scholar
 * John Smith (businessman) (1920–1995), British association football executive
 * Sir John Lindsay Eric Smith (1923-2007), British banker, Member of Parliament, and founder of The Landmark Trust
 * John Smith (police officer) (1938-), Metropolitan Police Deputy Commissioner