John Ackroyd

• John Ackroyd (footballer, [born 1868)], footballer for Grimsby Town and Rotherham Town
• John Ackroyd (footballer, born 1895), footballer for Exeter City, Grimsby Town and Rotherham County
• John Ackroyd (engineer), designer of the world land speed record car Thrust2
• John [Arthur Ackroyd], American serial killer and rapist