John Fitzgibbon

• John FitzGibbon (Irish lawyer), Irish lawyer and politician
• John FitzGibbon, 1st Earl of Clare, Attorney-General and Lord Chancellor of Ireland
• John FitzGibbon, 2nd Earl of Clare, Privy Councillor and Governor of Bombay
• John Fitzgibbon (politician), United Kingdom Member of Parliament for South Mayo
• John Fitzgibbon (Cork hurler), Irish hurler
• John Fitzgibbon (Limerick hurler), Irish hurler