John Leary
John Leary may refer to:
- John Leary (politician), businessman, mayor of Seattle
- John Leary (baseball), 1910s baseball player
- John Leary (cricketer), Australian cricketer
- Jack Leary, 1880s baseball player
- John J. Leary Jr., American journalist
- Scott Leary, American swimmer
- John P. Leary, Jesuit priest, president of Gonzaga University
- John Leary (actor), Australian theatre and television actor, Kangaroo Creek Gang and others
- John S. Leary, American lawyer and politician
- John Frederic Leary, British librarian and antiquarian