Tom Fitzgerald or Thomas Fitzgerald, Thomas FitzGerald may refer to:

• Tom Fitzgerald (economist) (1918–1993), Australian, delivered 1990 Boyer Lectures
• Tom Fitzgerald (handballer) (born 1966), American handball player
• Tom Fitzgerald (soccer) (1951–2004), American soccer coach from Florida
• Tom Fitzgerald (ice hockey) (born 1968), retired ice hockey player for the Boston Bruins and other teams
• Tom Fitzgerald (journalist) (1912–1983), American newspaper journalist for The Boston Globe'
• Tom Fitzgerald (reporter), American television newscaster
• Tom Fitzgerald (Irish politician) (1939–2013), Irish Fianna Fáil politician, senator 1981–1982, 1987–2002
• Tom Fitzgerald, in The Great Brain children's fictional series
• Thom Fitzgerald (born 1968), American-Canadian film director
• Thomas Fitzgerald (American politician) (1796–1855), judge and state legislator in both Indiana and Michigan, and U.S. Senator from Michigan
• Thomas FitzMaurice FitzGerald (1175–1213)
• Thomas FitzGerald, 2nd Earl of Kildare (died 1328), Lord Justice of Ireland
• Thomas FitzGerald, 7th Earl of Kildare (c. 1421–1477), Lord Chancellor of Ireland
• Thomas FitzGerald, 10th Earl of Kildare (1513–1537), also known as Silken Thomas
• Thomas FitzGerald, 2nd Baron Desmond (c. 1260–1298), Lord Justice of Ireland
• Thomas FitzGerald, 3rd Baron Desmond (1290–1307)
• Thomas FitzGerald, 5th Earl of Desmond (c. 1386–1420), subject of a poem by Thomas Moore
• Thomas FitzGerald, 7th Earl of Desmond (died 1467/68), Lord Deputy of Ireland
• Thomas FitzGerald, 11th Earl of Desmond (1454–1534)
• Thomas FitzGerald (County Louth politician) (died 1834), Irish politician and slave trader
• Thomas FitzGerald, Earl of Offaly (1974–1997), only son of Maurice FitzGerald, 9th Duke of Leinster
• Thomas Henry Fitzgerald (1824–1888), pioneer in sugar cane farming and politics in the early days of the colony of Queensland, Australia
• Thomas Naghten Fitzgerald (1838–1908), Irish-born surgeon, active in Australia
• Thomas R. Fitzgerald (judge) (1941–2015), Chief Justice of the Illinois Supreme Court
• Thomas R. Fitzgerald (Jesuit) (1922–2004), President of Fairfield University
• Thomas W. Fitzgerald, American lawyer and judge from New York
• Thomas Fitzgerald (composer), Australian composer, musical director, conductor and musician
• Tommy Fitzgerald (born 1970), Irish soccer player