John Gallagher may refer to:
Sportspeople John Gallagher (runner) (1890–1950), American long-distance runner John Gallagher (baseball) (1892–1952), Major League Baseball player John Gallagher (basketball) (born 1977), head men's basketball coach at the University of Hartford John Gallagher (golfer) (born 1981), Scottish professional golfer John Gallagher (ice hockey) (1909–1981), professional ice hockey player John Gallagher (rugby) (born 1964), British-born New Zealand rugby union, and rugby league footballer John Gallagher (rugby league), rugby league player for Batley John Bán Gallagher, Gaelic footballer for Donegal John J. Gallagher (coach) (1904–1982), American college football and basketball player and coach
Politicians John E. Gallagher (politician), American politician John P. Gallagher (1932–2011), American politician in the New Jersey Senate John J. Gallagher (politician) (born 1944), American politician in the New Jersey General Assembly John S. Gallagher (1849–1920), Ontario merchant and political figure Others John Gallagher (barrister), member of the board of the Australian Broadcasting Corporation John Gallagher (bishop) (1846–1923), Irish-born bishop of the Australian Roman Catholic Archdiocese of Canberra and Goulburn John Gallagher (businessman) (born 1939), New Zealand businessman and philanthropist John Gallagher (cartoonist) (1926–2005), American cartoonist John Gallagher (geologist) (1916–1998), Canadian geologist and businessman John Gallagher (journalist) (born 1949), American business journalist, author John Andrew Gallagher (1919–1980), British historian John Gallagher Jr. (born 1984), American actor and musician John Gallagher III (born 1947), American astronomer John E. Gallagher (1958–2019), American television director John M. Gallagher (born 1966), 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 (fl. 1830s), American naval commander, in command of USS Vandalia
See also Gallagher (surname) Jon Gallagher (born 1996), Irish footballer Jack Gallagher (disambiguation) Jackie Gallagher (disambiguation) John Gallacher (disambiguation)