John Nichol may refer to: John Pringle Nichol (1804–1859), Scottish scientist; mentor to William Thomson John Nichol (biographer) (1833–1894), Scottish biographer John Nichol (footballer) (born 1879), English footballer (Grimsby Town) John Nichol (RAF officer) (born 1963), RAF navigator shot down and taken prisoner during the first Gulf War John Lang Nichol (born 1924), Canadian Senator John Nichol, fictional character from DC Comics going by the alias of Doctor Polaris