John Seymour

John Seymour may refer to:

Courtiers and politicians

• John Hayward alias Seymour(c.1355-1407), MP for Bridport
• John Seymour (MP for Bristol), in 1351, MP for Bristol (UK Parliament constituency)
• Sir John Seymour (1474–1536), father of Queen Jane Seymour, third wife of Henry VIII of England
• John Seymour (died 1567), MP for Great Bedwyn
• John Seymour (died 1552), MP for Wootton Bassett
• John Seymour (died 1618), MP for Great Bedwyn (UK Parliament constituency)
• John Seymour (died 1491), Wiltshire and Somerset landowner, grandfather of Queen Jane Seymour
• John F. Seymour (born 1937), former Senator from California
• John Seymour (Maryland), royal governor of the Maryland colony, 1704–1709

Others

• John Seymour (technician), Grammy Award winning sound technician
• John Seymour (author) (1914–2004), author and influential figure in the self-sufficiency movement
• John Seymour, 4th Duke of Somerset (before 1646–1675)
• John Seymour, 19th Duke of Somerset (born 1952)
• John Laurence Seymour (1893–1986), American composer
• John Seymour (priest) (d. 1501) Canon of Windsor