John Thorold may refer to: John Thorold (died 1700), Member of Parliament (MP) for Grantham 1685–1689 Sir John Thorold, 4th Baronet (c.1664–1717), MP for Grantham and Lincolnshire Sir John Thorold, 9th Baronet (1734–1815), MP for Lincolnshire Sir John Thorold, 12th Baronet (1842–1922), Conservative MP for Grantham See also Thorold Baronets