The greatest ability in business is to get along with others and influence their actions. A chip on the shoulder is too heavy a piece of baggage to carry through life.

John Hannah may refer to:
John Hannah (actor) (born 1962) Scottish actor
John Hannah (American football) (born 1951) American football player
John Hannah (VC) (1921–1947) Scottish RAF radio operator
John Hannah (Archdeacon of Lewes) (1818–1888) Anglican priest and schoolmaster
John Hannah (Dean of Chichester) (1843–1931) Anglican priest and son of John Hannah (Archdeacon of Lewes)
John A. Hannah (born c. 1940s) American academic
John H.