Henry Fitzroy may refer to:
- Henry FitzRoy (d. 1158) (1103–1158), illegitimate son of Henry I of England
- Henry FitzRoy, 1st Duke of Richmond and Somerset (1519–1536), the only illegitimate child acknowledged by Henry VIII
- Henry Fitzroy (character), character in fiction based on the above
- Henry FitzRoy, 1st Duke of Grafton (1663–1690), one of the sons of Charles II of Great Britain
- Henry FitzRoy, 5th Duke of Grafton (1790–1863), descendant of the above
- Henry Fitzroy (cricketer) (1765–1794), English cricketer
- Henry Fitzroy (statesman) (1807–1859), First Commissioner of Works during the mid-19th century
- Henry James FitzRoy, Earl of Euston (1848–1912), eldest son of Augustus FitzRoy, 7th Duke of Grafton
- Henry FitzRoy, 12th Duke of Grafton (born 1978), present Duke of Grafton