John Riddell

John Riddell may refer to:


 * John Riddell (genealogist) (1785–1862), Scottish peerage lawyer
 * Jack Riddell (1931–2024), Canadian politician
 * John Riddell (Marxist) (born 1942), Marxist writer and former leader of the Revolutionary Workers League in Canada
 * Sir John Riddell, 13th Baronet of Riddell (1934–2010)
 * John Carre Riddell (1809–1879), politician in colonial Victoria (Australia)
 * John Leonard Riddell (1807–1865), American scientist and author
 * John Riddell, pseudonym of humorist Corey Ford (1902–1969), used for satiric book reviews
 * John Riddell, a fictional character in Dinosaurs on a Spaceship
 * 7 News Adelaide newsreader alongside Jane Doyle