John Knightley may refer to:

John Knightley (Emma) John Knightley (MP) for Warwickshire Sir John Knightley, 1st Baronet (c. 1611–c. 1670) of the Knightley baronets Sir John Knightley, 2nd Baronet (died 1689) of the Knightley baronets Sir John Knightley, 1st Baronet (1747–1812) of the Knightley baronets