John Herron may refer to: John Herron (Pittsburgh), mayor of Pittsburgh, Pennsylvania in the 1840s John S. Herron, later mayor of Pittsburgh in the 1930s John Herron (Alberta politician), former Canadian Member of Parliament from Alberta in the early 1900s John Herron (New Brunswick politician), former Canadian Member of Parliament from New Brunswick in the 1990s John Herron (Australian politician), former Australian Senator John Herron (footballer), Scottish footballer