John Nicholls may refer to: John Nicholls (MP) (c. 1745–1832), British Member of Parliament (MP) for Bletchingley 1783–87 and for Tregony 1796–1802 John Nicholls (footballer) (born 1939), Australian footballer Jack Nicholls (born 1943), British Anglican Bishop of Sheffield Jack Nicholls (footballer) (1898–1970), Welsh international footballer Jack "Putty Nose" Nicholls (1912–1981), Australian waterfront identity John C. Nicholls (1834–1893), United States Representative from Georgia Johnny Nicholls (1931–1995), English footballer John Nicholls (RAF officer) (1926–2007), British air marshal John Nicholls, British Committee of 100 signatory John Graham Nicholls (born 1929), British/Swiss physiologist