Henry St. John

Henry St. John may refer to:

• Henry St John (MP for Stockbridge) (c. 1568–1621), MP for Stockbridge 1589,1593
• Sir Henry St John, 1st Viscount St John (1652–1742), father of the 1st Viscount Bolingbroke and MP for Wootton Bassett 1679–1700
• Henry St John, 1st Viscount Bolingbroke (1678–1751), English philosopher and MP for Wootton Bassett 1701–1708
• Henry St John (British Army officer) (1738–1818), MP for Wootton Bassett 1761 and 1802
• Henry St. John (congressman) (1783–1869), U.S. Representative from Ohio
• Henry St John (Royal Navy officer) (1837–1909), British admiral
• Henry St. John, one of the many pen names of John Creasey
• Viscount Bolingbroke, for several other Viscounts Bolingbroke named Henry St. John