John Nichol

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