John Gallagher may refer to:
Sportspeople
- John Gallagher (athlete) (1890âÂÂ?), American long-distance runner
- John Gallagher (baseball) (1892âÂÂ1952), 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) (1909âÂÂ1981), 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) (1904âÂÂ1982), American college football and basketball player and coach
Politicians
Others
- John Gallagher (barrister), member of the board of the Australian Broadcasting Corporation
- John Gallagher (bishop) (1846âÂÂ1923), 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) (1926âÂÂ2005), American cartoonist
- John Gallagher (geologist) (1916âÂÂ1998), Canadian geologist and businessman
- John Gallagher (journalist) (born 1949), American business journalist, author
- John Andrew Gallagher (1919âÂÂ1980), British historian
- John Gallagher Jr. (born 1984), American actor and musician
- John Gallagher III (born 1947), American astronomer
- John E. Gallagher (1958âÂÂ2019), 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