Valentine Knightley may refer to: Valentine Knightley (died 1618) (c.1555–1618), MP for Tavistock and Northampton Valentine Knightley (MP) (1718–1754), High Sheriff of Northamptonshire, 1743; MP for Northamptonshire, 1748–1754 Sir Valentine Knightley, 4th Baronet (1812–1898), of the Knightley Baronets