John Fitzgerald
John or Jack Fitzgerald, or variants, may refer to:
Military
- Sir John Forster FitzGerald, Irish soldier, officer in British Army during the Napoleonic wars and Liberal MP
- John Fitzgerald (soldier), American soldier
- John Fitzgerald (Medal of Honor), American Medal of Honor recipient
Nobility
- John FitzGerald, 1st Baron Desmond
- John FitzGerald, 1st Earl of Kildare, Irish nobleman
- John FitzGerald, 4th Earl of Desmond
- John FitzGerald, de facto 12th Earl of Desmond
- John Fitzedmund Fitzgerald, Irish baron
- John FitzGerald, 18th Earl of Kildare
- Lord John FitzGerald, Irish nobleman
Politics and law
UK
- Sir John Fitzgerald (governor), Irish soldier and governor of Tangier
- John FitzGerald, 15th Knight of Kerry, Irish MP for Dingle
- John Fitzgerald (1775–1852), British MP for Seaford 1826–32
- John FitzGerald, Baron FitzGerald, Irish judge and politician
- Sir John Fitzgerald (brewer), Lord Mayor of Newcastle upon Tyne, England, 1914–1915
- Jack Fitzgerald (socialist), founding member of the Socialist Party of Great Britain
U.S.
- John Fitzgerald (Wisconsin politician), Wisconsin banker and politician
- John Wesley Fitzgerald (politician, born 1850), American businessman and politician
- John C. Fitzgerald, New York politician
- John F. Fitzgerald, aka "Honey Fitz", mayor of Boston, grandfather and namesake of president John F. Kennedy
- John J. Fitzgerald, U.S. representative from New York
- John I. Fitzgerald, American attorney and politician in Massachusetts
- John Moonan Fitzgerald, U.S. jurist and politician
- John Warner Fitzgerald, Michigan chief justice
- John Wesley Fitzgerald (politician, born 1990), Michigan state representative
- John F. Kennedy,, 35th U.S. President
Other figures in politics and law
- John Daniel FitzGerald, Australian politician
- Jack Fitzgerald (Australian politician), member of the South Australian House of Assembly
- John FitzGerald of Dromana, MP for Dungarvan in the Irish Parliament
- Jack Fitzgerald (Irish politician), Irish Labour Party politician
Science and medicine
- John Patrick Fitzgerald, New Zealand doctor, community leader and hospital superintendent
- John G. FitzGerald, Canadian physician
- John Fitzgerald (computer scientist), British computer scientist and Chair of Formal Methods Europe
Sports
American football
- John Fitzgerald (center), former Dallas Cowboys center
- John Fitzgerald (quarterback), Arena Football League quarterback
- John Fitzgerald (offensive guard), former University of Central Oklahoma lineman
Association football (soccer)
- Jack Fitzgerald (footballer), Irish footballer
- John Fitzgerald (soccer), Canadian soccer player, businessman & corporate lawyer
- John Fitzgerald (footballer), Irish footballer
Baseball
- John Fitzgerald (Rochester Broncos pitcher), pitcher for the 1890 Rochester Broncos
- John Fitzgerald (Boston Reds pitcher), pitcher for the 1891 Boston Reds
- John Fitzgerald (1950s pitcher), pitcher for the 1958 San Francisco Giants
- John Fitzgerald (catcher), Negro league baseball catcher
Other sports
- John J. Fitz Gerald, American turf racing sportswriter
- Jack Fitzgerald (cyclist), Australian cyclist
- John Fitzgerald (Australian footballer, born 1961), former Geelong player
- John Fitzgerald (Australian footballer, born 1901), Fitzroy player
- John Fitzgerald (tennis), Australian tennis player
- John Fitzgerald (pentathlete), American modern pentathlete
- John Fitzgerald (rugby union), Irish rugby union international player
- Jack Fitzgerald (rugby league), Australian rugby league player
Others
- John Fitzgerald (priest), Dean of Cork
- John Anster Fitzgerald, English fairy painter and portrait artist
- John Driscoll Fitz-Gerald, American scholar and philologist
- John D. Fitzgerald, American author of children's books
- John Fitzgerald (poet), English Carmelite priest and philosopher and Welsh-language poet
- John D. FitzGerald, Irish economist and former director of the Economic and Social Research Institute
- John S. Fitzgerald, a frontiersman and erstwhile companion to Hugh Glass