John Hannah
John Hannah may refer to:
- John Hannah (Methodist), called the elder, English Wesleyan minister
- John Hannah (archdeacon of Lewes), the younger,, his son, Anglican priest and schoolmaster
- John Hannah (dean of Chichester), his son, Anglican priest
- John Hannah (VC), Scottish RAF radio operator
- John Hannah (American football), American football player
- John Hannah (actor), Scottish actor
- John Hannah (footballer), English football forward
- John A. Hannah, American academic administrator and head of USAID
- John D. Hannah, American academic
- John H. Hannah Jr., U.S. federal judge
- John P. Hannah, American government administrator
- Jack Hannah, American animation artist