Fitzroy or FitzRoy is an Anglo-Norman name originally meaning "son of the king" - it usually refers to a bastard son of the king, or a descendant thereof. It may refer to: People:
- Matilda FitzRoy, daughter of Henry I and Isabel de Beaumont.
- Henry Fitzroy, 1st Duke of Richmond and Somerset (1519–1536), son of Henry VIII and Elizabeth Blount.
- Henry FitzRoy, 1st Duke of Grafton (1663–1690), son of Charles II and Barbara Palmer, 1st Duchess of Cleveland.
- George FitzRoy, 1st Duke of Northumberland (1665–1716), son of Charles II and Barbara Palmer.
- Charles FitzRoy, 2nd Duke of Cleveland (1662–1730), son of Charles II and Barbara Palmer.
- Barbara Fitzroy (1672–1731), youngest daughter of Barbara Palmer.
- Charles FitzRoy, 2nd Duke of Grafton (1683–1757), Irish and English politician.
- Augustus FitzRoy, 3rd Duke of Grafton (1735–1811), British Prime Minister.
- Charles Augustus FitzRoy (1796–1858), British military officer and Governor of New South Wales.
- Robert FitzRoy (1805–1865), British naval officer, captain of HMS Beagle, meteorologist, surveyor, hydrographer, and Governor of New Zealand.
- Richard Fitz Roy, son of John Lackland, King of England.
Places and things:
- Fitzroy (inlet), a sea inlet East Falkland, Falkland Islands
- Fitzroy, Victoria, a suburb of Melbourne.
- Fitzroy, South Australia, a suburb of Adelaide.
- Fitzroy River, Queensland, in Central Queensland.
- Fitzroy Island National Park, Queensland, Australia.
- Fitzroy Football Club, a former Australian rules football team.
- Fitzroy Square, in London
- Mount Fitzroy, a name for Cerro Chaltén in Argentina.
- FitzRoy, a sea area in the British Shipping Forecast.
- Fitzroy, New Zealand, a suburb of New Plymouth.
Fictional characters:
- Trevor Fitzroy, a Marvel Comics and X-Men villain.
