John Gallagher

Sportspeople

• John Gallagher , American long-distance runner
• John Gallagher , Major League Baseball player
• John Gallagher , head men's basketball coach at the University of Hartford
• John Gallagher , Scottish professional golfer
• John Gallagher , professional ice hockey player
• John Gallagher , British-born New Zealand rugby union, and rugby league player
• John Gallagher, rugby league player for Batley
• John Bán Gallagher, Gaelic footballer for Donegal
• John J. Gallagher , American college football and basketball player and coach

  Politicians

• John E. Gallagher, American politician
• John P. Gallagher, American politician in the New Jersey Senate
• John J. Gallagher , American politician in the New Jersey General Assembly
• John S. Gallagher, Ontario merchant and political figure

  Others

• John Gallagher, member of the board of the Australian Broadcasting Corporation
• John Gallagher , Irish-born bishop of the Australian Roman Catholic Archdiocese of Canberra and Goulburn
• John Gallagher , New Zealand businessman and philanthropist
• John Gallagher, American cartoonist
• John Gallagher , Canadian geologist and businessman
• John Gallagher , American business journalist, author
• John Andrew Gallagher, British historian
• John Gallagher Jr., American actor and musician
• John Gallagher III, American astronomer
• John E. Gallagher, American television director
• John M. Gallagher, United States district judge
• John Gallagher, guitarist/vocalist for the American death metal band Dying Fetus
• John Gallagher, bassist/vocalist for the English heavy metal band Raven
• John Gallagher, American naval commander, in command of USS ''Vandalia''