John Haggerty (disambiguation)
John Haggerty is a guitarist.
John Haggerty or Hagerty may also refer to:
- John A. Haggerty, Wisconsin state legislator and businessman
- John B. Haggerty, American labor union leader
- John K. Hagerty, Pennsylvania state representative
- John Haggerty, New York political candidate who lost the 1920 United States House of Representatives elections
- John Haggerty, political candidate who lost the 2014 California Attorney General primary election
- John Haggerty (Canadian football), Canadian football punter
- Jack Hagerty, American football player, coach and college athletics administrator