Sir John Smith

• John Cyril Smith
• John Lindsay Eric Smith
• John Smith (British Army officer, born 1754)
• John Smith (High Sheriff of Kent)
• John Smith (banneret)
• John Smith (businessman)
• John Smith (disambiguation)
• Sir John James Smith, 3rd Baronet
• Sir John Mark Frederick Smith
• Sir John Silvester Smith, 1st Baronet
• Sir John Smith, 1st Baronet
• Sir John Wyldbore Smith, 2nd Baronet
• Smith-Dodsworth baronets
• Smith-Marriott baronets